def init_printing(pretty_print=True,
order=None,
use_unicode=None,
wrap_line=None,
no_global=False,
ip=None):
"""Initializes pretty-printer depending on the environment. """
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
if not no_global:
Printer.set_global_settings(order=order,
use_unicode=use_unicode,
wrap_line=wrap_line)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(expr,
order=order,
use_unicode=
use_unicode,
wrap_line=wrap_line)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith('IPython'):
_init_ipython_printing(ip, stringify_func)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True, order=None, use_unicode=None, wrap_line=None, no_global=False):
"""Initializes pretty-printer depending on the environment. """
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
if not no_global:
Printer.set_global_settings(order=order, use_unicode=use_unicode, wrap_line=wrap_line)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(expr, order=order, use_unicode=use_unicode, wrap_line=wrap_line)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
try:
import IPython
except ImportError:
_init_python_printing(stringify_func)
else:
ip = IPython.ipapi.get()
if ip is not None:
_init_ipython_printing(ip, stringify_func)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True,
order=None,
use_unicode=None,
wrap_line=None,
no_global=False):
"""Initializes pretty-printer depending on the environment. """
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
if not no_global:
Printer.set_global_settings(order=order,
use_unicode=use_unicode,
wrap_line=wrap_line)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(expr,
order=order,
use_unicode=
use_unicode,
wrap_line=wrap_line)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
try:
import IPython
except ImportError:
_init_python_printing(stringify_func)
else:
ip = IPython.ipapi.get()
if ip is not None:
_init_ipython_printing(ip, stringify_func)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True, order=None, use_unicode=None, wrap_line=None, no_global=False, ip=None):
"""Initializes pretty-printer depending on the environment. """
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
if not no_global:
Printer.set_global_settings(order=order, use_unicode=use_unicode, wrap_line=wrap_line)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(expr, order=order, use_unicode=use_unicode, wrap_line=wrap_line)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith('IPython'):
_init_ipython_printing(ip, stringify_func)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True, order=None, use_unicode=None, wrap_line=None, num_columns=None, no_global=False, ip=None):
"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify;
if False, use sstrrepr to stringify.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
wrap_line: boolean
If True, lines will wrap at the end;
if False, they will not wrap but continue as one line.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns;
if None, number of columns before wrapping is set to terminal width.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
if not no_global:
Printer.set_global_settings(order=order, use_unicode=use_unicode, wrap_line=wrap_line, num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(expr, order=order, use_unicode=use_unicode, wrap_line=wrap_line, num_columns=num_columns)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith('IPython'):
_init_ipython_printing(ip, stringify_func)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True,
order=None,
use_unicode=None,
use_latex=None,
wrap_line=None,
num_columns=None,
no_global=False,
ip=None,
euler=False,
forecolor=None,
backcolor='Transparent',
fontsize='10pt',
latex_mode='plain',
print_builtin=True,
str_printer=None,
pretty_printer=None,
latex_printer=None,
scale=1.0,
**settings):
r"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print : boolean, default=True
If True, use pretty_print to stringify or the provided pretty
printer; if False, use sstrrepr to stringify or the provided string
printer.
order : string or None, default='lex'
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode : boolean or None, default=None
If True, use unicode characters;
if False, do not use unicode characters;
if None, make a guess based on the environment.
use_latex : string, boolean, or None, default=None
If True, use default LaTeX rendering in GUI interfaces (png and
mathjax);
if False, do not use LaTeX rendering;
if None, make a guess based on the environment;
if 'png', enable latex rendering with an external latex compiler,
falling back to matplotlib if external compilation fails;
if 'matplotlib', enable LaTeX rendering with matplotlib;
if 'mathjax', enable LaTeX text generation, for example MathJax
rendering in IPython notebook or text rendering in LaTeX documents;
if 'svg', enable LaTeX rendering with an external latex compiler,
no fallback
wrap_line : boolean
If True, lines will wrap at the end; if False, they will not wrap
but continue as one line. This is only relevant if ``pretty_print`` is
True.
num_columns : int or None, default=None
If int, number of columns before wrapping is set to num_columns; if
None, number of columns before wrapping is set to terminal width.
This is only relevant if ``pretty_print`` is True.
no_global : boolean, default=False
If True, the settings become system wide;
if False, use just for this console/session.
ip : An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
euler : boolean, optional, default=False
Loads the euler package in the LaTeX preamble for handwritten style
fonts (http://www.ctan.org/pkg/euler).
forecolor : string or None, optional, default=None
DVI setting for foreground color. None means that either 'Black',
'White', or 'Gray' will be selected based on a guess of the IPython
terminal color setting. See notes.
backcolor : string, optional, default='Transparent'
DVI setting for background color. See notes.
fontsize : string, optional, default='10pt'
A font size to pass to the LaTeX documentclass function in the
preamble. Note that the options are limited by the documentclass.
Consider using scale instead.
latex_mode : string, optional, default='plain'
The mode used in the LaTeX printer. Can be one of:
{'inline'|'plain'|'equation'|'equation*'}.
print_builtin : boolean, optional, default=True
If ``True`` then floats and integers will be printed. If ``False`` the
printer will only print SymPy types.
str_printer : function, optional, default=None
A custom string printer function. This should mimic
sympy.printing.sstrrepr().
pretty_printer : function, optional, default=None
A custom pretty printer. This should mimic sympy.printing.pretty().
latex_printer : function, optional, default=None
A custom LaTeX printer. This should mimic sympy.printing.latex().
scale : float, optional, default=1.0
Scale the LaTeX output when using the ``png`` or ``svg`` backends.
Useful for high dpi screens.
settings :
Any additional settings for the ``latex`` and ``pretty`` commands can
be used to fine-tune the output.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
Notes
=====
The foreground and background colors can be selected when using 'png' or
'svg' LaTeX rendering. Note that before the ``init_printing`` command is
executed, the LaTeX rendering is handled by the IPython console and not SymPy.
The colors can be selected among the 68 standard colors known to ``dvips``,
for a list see [1]_. In addition, the background color can be
set to 'Transparent' (which is the default value).
When using the 'Auto' foreground color, the guess is based on the
``colors`` variable in the IPython console, see [2]_. Hence, if
that variable is set correctly in your IPython console, there is a high
chance that the output will be readable, although manual settings may be
needed.
References
==========
.. [1] https://en.wikibooks.org/wiki/LaTeX/Colors#The_68_standard_colors_known_to_dvips
.. [2] https://ipython.readthedocs.io/en/stable/config/details.html#terminal-colors
See Also
========
sympy.printing.latex
sympy.printing.pretty
"""
import sys
from sympy.printing.printer import Printer
if pretty_print:
if pretty_printer is not None:
stringify_func = pretty_printer
else:
from sympy.printing import pretty as stringify_func
else:
if str_printer is not None:
stringify_func = str_printer
else:
from sympy.printing import sstrrepr as stringify_func
# Even if ip is not passed, double check that not in IPython shell
in_ipython = False
if ip is None:
try:
ip = get_ipython()
except NameError:
pass
else:
in_ipython = (ip is not None)
if ip and not in_ipython:
in_ipython = _is_ipython(ip)
if in_ipython and pretty_print:
try:
import IPython
# IPython 1.0 deprecates the frontend module, so we import directly
# from the terminal module to prevent a deprecation message from being
# shown.
if version_tuple(IPython.__version__) >= version_tuple('1.0'):
from IPython.terminal.interactiveshell import TerminalInteractiveShell
else:
from IPython.frontend.terminal.interactiveshell import TerminalInteractiveShell
from code import InteractiveConsole
except ImportError:
pass
else:
# This will be True if we are in the qtconsole or notebook
if not isinstance(ip, (InteractiveConsole, TerminalInteractiveShell)) \
and 'ipython-console' not in ''.join(sys.argv):
if use_unicode is None:
debug("init_printing: Setting use_unicode to True")
use_unicode = True
if use_latex is None:
debug("init_printing: Setting use_latex to True")
use_latex = True
if not NO_GLOBAL and not no_global:
Printer.set_global_settings(order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr, **settings: \
_stringify_func(expr, order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns,
**settings)
else:
stringify_func = \
lambda expr, **settings: _stringify_func(
expr, order=order, **settings)
if in_ipython:
mode_in_settings = settings.pop("mode", None)
if mode_in_settings:
debug("init_printing: Mode is not able to be set due to internals"
"of IPython printing")
_init_ipython_printing(ip, stringify_func, use_latex, euler, forecolor,
backcolor, fontsize, latex_mode, print_builtin,
latex_printer, scale, **settings)
else:
_init_python_printing(stringify_func, **settings)
def init_printing(pretty_print=True, order=None, use_unicode=None,
use_latex=None, wrap_line=None, num_columns=None,
no_global=False, ip=None, euler=False, forecolor='Black',
backcolor='Transparent', fontsize='10pt',
latex_mode='equation*', print_builtin=True,
str_printer=None, pretty_printer=None,
latex_printer=None):
"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify or the provided pretty
printer; if False, use sstrrepr to stringify or the provided string
printer.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
use_latex: string, boolean, or None
If True, use default latex rendering in GUI interfaces (png and
mathjax);
if False, do not use latex rendering;
if 'png', enable latex rendering with an external latex compiler,
falling back to matplotlib if external compilation fails;
if 'matplotlib', enable latex rendering with matplotlib;
if 'mathjax', enable latex text generation, for example MathJax
rendering in IPython notebook or text rendering in LaTeX documents
wrap_line: boolean
If True, lines will wrap at the end; if False, they will not wrap
but continue as one line. This is only relevant if `pretty_print` is
True.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns; if
None, number of columns before wrapping is set to terminal width.
This is only relevant if `pretty_print` is True.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
euler: boolean, optional, default=False
Loads the euler package in the LaTeX preamble for handwritten style
fonts (http://www.ctan.org/pkg/euler).
forecolor: string, optional, default='Black'
DVI setting for foreground color.
backcolor: string, optional, default='Transparent'
DVI setting for background color.
fontsize: string, optional, default='10pt'
A font size to pass to the LaTeX documentclass function in the
preamble.
latex_mode: string, optional, default='equation*'
The mode used in the LaTeX printer. Can be one of:
{'inline'|'plain'|'equation'|'equation*'}.
print_builtin: boolean, optional, default=True
If true then floats and integers will be printed. If false the
printer will only print SymPy types.
str_printer: function, optional, default=None
A custom string printer function. This should mimic
sympy.printing.sstrrepr().
pretty_printer: function, optional, default=None
A custom pretty printer. This should mimic sympy.printing.pretty().
latex_printer: function, optional, default=None
A custom LaTeX printer. This should mimic sympy.printing.latex().
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
import sys
from sympy.printing.printer import Printer
if pretty_print:
if pretty_printer is not None:
stringify_func = pretty_printer
else:
from sympy.printing import pretty as stringify_func
else:
if str_printer is not None:
stringify_func = str_printer
else:
from sympy.printing import sstrrepr as stringify_func
# Even if ip is not passed, double check that not in IPython shell
in_ipython = False
if ip is None:
try:
ip = get_ipython()
except NameError:
pass
else:
in_ipython = (ip is not None)
if ip and not in_ipython:
in_ipython = _is_ipython(ip)
if in_ipython and pretty_print:
try:
import IPython
# IPython 1.0 deprecates the frontend module, so we import directly
# from the terminal module to prevent a deprecation message from being
# shown.
if V(IPython.__version__) >= '1.0':
from IPython.terminal.interactiveshell import TerminalInteractiveShell
else:
from IPython.frontend.terminal.interactiveshell import TerminalInteractiveShell
from code import InteractiveConsole
except ImportError:
pass
else:
# This will be True if we are in the qtconsole or notebook
if not isinstance(ip, (InteractiveConsole, TerminalInteractiveShell)) \
and 'ipython-console' not in ''.join(sys.argv):
if use_unicode is None:
debug("init_printing: Setting use_unicode to True")
use_unicode = True
if use_latex is None:
debug("init_printing: Setting use_latex to True")
use_latex = True
if not no_global:
Printer.set_global_settings(order=order, use_unicode=use_unicode,
wrap_line=wrap_line, num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: \
_stringify_func(expr, order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if in_ipython:
_init_ipython_printing(ip, stringify_func, use_latex, euler,
forecolor, backcolor, fontsize, latex_mode,
print_builtin, latex_printer)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True,
order=None,
use_unicode=None,
use_latex=None,
wrap_line=None,
num_columns=None,
no_global=False,
ip=None,
euler=False,
forecolor='Black',
backcolor='Transparent',
fontsize='10pt',
latex_mode='plain',
print_builtin=True,
str_printer=None,
pretty_printer=None,
latex_printer=None,
scale=1.0,
**settings):
r"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify or the provided pretty
printer; if False, use sstrrepr to stringify or the provided string
printer.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
use_latex: string, boolean, or None
If True, use default latex rendering in GUI interfaces (png and
mathjax);
if False, do not use latex rendering;
if 'png', enable latex rendering with an external latex compiler,
falling back to matplotlib if external compilation fails;
if 'matplotlib', enable latex rendering with matplotlib;
if 'mathjax', enable latex text generation, for example MathJax
rendering in IPython notebook or text rendering in LaTeX documents;
if 'svg', enable latex rendering with an external latex compiler,
no fallback
wrap_line: boolean
If True, lines will wrap at the end; if False, they will not wrap
but continue as one line. This is only relevant if ``pretty_print`` is
True.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns; if
None, number of columns before wrapping is set to terminal width.
This is only relevant if ``pretty_print`` is True.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
euler: boolean, optional, default=False
Loads the euler package in the LaTeX preamble for handwritten style
fonts (http://www.ctan.org/pkg/euler).
forecolor: string, optional, default='Black'
DVI setting for foreground color.
backcolor: string, optional, default='Transparent'
DVI setting for background color.
fontsize: string, optional, default='10pt'
A font size to pass to the LaTeX documentclass function in the
preamble.
latex_mode: string, optional, default='plain'
The mode used in the LaTeX printer. Can be one of:
{'inline'|'plain'|'equation'|'equation*'}.
print_builtin: boolean, optional, default=True
If true then floats and integers will be printed. If false the
printer will only print SymPy types.
str_printer: function, optional, default=None
A custom string printer function. This should mimic
sympy.printing.sstrrepr().
pretty_printer: function, optional, default=None
A custom pretty printer. This should mimic sympy.printing.pretty().
latex_printer: function, optional, default=None
A custom LaTeX printer. This should mimic sympy.printing.latex().
scale: float, optional, default=1.0
Scale the LaTeX output when using the ``png`` backend. Useful for high
dpi screens.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
import sys
from sympy.printing.printer import Printer
if pretty_print:
if pretty_printer is not None:
stringify_func = pretty_printer
else:
from sympy.printing import pretty as stringify_func
else:
if str_printer is not None:
stringify_func = str_printer
else:
from sympy.printing import sstrrepr as stringify_func
# Even if ip is not passed, double check that not in IPython shell
in_ipython = False
if ip is None:
try:
ip = get_ipython()
except NameError:
pass
else:
in_ipython = (ip is not None)
if ip and not in_ipython:
in_ipython = _is_ipython(ip)
if in_ipython and pretty_print:
try:
import IPython
# IPython 1.0 deprecates the frontend module, so we import directly
# from the terminal module to prevent a deprecation message from being
# shown.
if V(IPython.__version__) >= '1.0':
from IPython.terminal.interactiveshell import TerminalInteractiveShell
else:
from IPython.frontend.terminal.interactiveshell import TerminalInteractiveShell
from code import InteractiveConsole
except ImportError:
pass
else:
# This will be True if we are in the qtconsole or notebook
if not isinstance(ip, (InteractiveConsole, TerminalInteractiveShell)) \
and 'ipython-console' not in ''.join(sys.argv):
if use_unicode is None:
debug("init_printing: Setting use_unicode to True")
use_unicode = True
if use_latex is None:
debug("init_printing: Setting use_latex to True")
use_latex = True
if not NO_GLOBAL and not no_global:
Printer.set_global_settings(order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: \
_stringify_func(expr, order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if in_ipython:
mode_in_settings = settings.pop("mode", None)
if mode_in_settings:
debug("init_printing: Mode is not able to be set due to internals"
"of IPython printing")
_init_ipython_printing(ip, stringify_func, use_latex, euler, forecolor,
backcolor, fontsize, latex_mode, print_builtin,
latex_printer, scale, **settings)
else:
_init_python_printing(stringify_func, **settings)
def init_printing(pretty_print=True,
order=None,
use_unicode=None,
use_latex=None,
wrap_line=None,
num_columns=None,
no_global=False,
ip=None,
euler=False,
forecolor='Black',
backcolor='Transparent',
fontsize='10pt',
latex_mode='equation*'):
"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify;
if False, use sstrrepr to stringify.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
use_latex: string, boolean, or None
If True, use default latex rendering in GUI interfaces (png and
mathjax);
if False, do not use latex rendering;
if 'png', enable latex rendering with an external latex compiler,
falling back to matplotlib if external compilation fails;
if 'matplotlib', enable latex rendering with matplotlib;
if 'mathjax', enable latex text generation, for example MathJax
rendering in IPython notebook or text rendering in LaTeX documents
wrap_line: boolean
If True, lines will wrap at the end;
if False, they will not wrap but continue as one line.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns;
if None, number of columns before wrapping is set to terminal width.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
import sys
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
# Even if ip is not passed, double check that not in IPython shell
if ip is None:
try:
ip = get_ipython()
except NameError:
pass
if ip and pretty_print:
try:
import IPython
# IPython 1.0 deprecates the frontend module, so we import directly
# from the terminal module to prevent a deprecation message from being
# shown.
if IPython.__version__ >= '1.0':
from IPython.terminal.interactiveshell import TerminalInteractiveShell
else:
from IPython.frontend.terminal.interactiveshell import TerminalInteractiveShell
from code import InteractiveConsole
except ImportError:
pass
else:
# This will be True if we are in the qtconsole or notebook
if not isinstance(ip, (InteractiveConsole, TerminalInteractiveShell)) \
and 'ipython-console' not in ''.join(sys.argv):
if use_unicode is None:
debug("init_printing: Setting use_unicode to True")
use_unicode = True
if use_latex is None:
debug("init_printing: Setting use_latex to True")
use_latex = True
if not no_global:
Printer.set_global_settings(order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: \
_stringify_func(expr, order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith('IPython'):
_init_ipython_printing(ip, stringify_func, use_latex, euler, forecolor,
backcolor, fontsize, latex_mode)
else:
_init_python_printing(stringify_func)
def init_printing(
pretty_print=True,
order=None,
use_unicode=None,
use_latex=None,
wrap_line=None,
num_columns=None,
no_global=False,
ip=None,
euler=False,
forecolor="Black",
backcolor="Transparent",
fontsize="10pt",
latex_mode="equation*",
):
"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify;
if False, use sstrrepr to stringify.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
use_latex: string, boolean or None
If True, use latex rendering in GUI interfaces;
if False, do not use latex rendering; the string
'png' specifies using latex-rendered images while
the string 'mathjax' specifies using MathJax only.
wrap_line: boolean
If True, lines will wrap at the end;
if False, they will not wrap but continue as one line.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns;
if None, number of columns before wrapping is set to terminal width.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
import sys
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
# Even if ip is not passed, double check that not in IPython shell
if ip is None:
try:
ip = get_ipython()
except NameError:
pass
if ip and pretty_print:
try:
import IPython
from IPython.frontend.terminal.interactiveshell import TerminalInteractiveShell
from code import InteractiveConsole
except ImportError:
pass
else:
# This will be True if we are in the qtconsole or notebook
if not isinstance(ip, (InteractiveConsole, TerminalInteractiveShell)) and "ipython-console" not in "".join(
sys.argv
):
if use_unicode is None:
use_unicode = True
if use_latex is None:
use_latex = True
if not no_global:
Printer.set_global_settings(order=order, use_unicode=use_unicode, wrap_line=wrap_line, num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(
expr, order=order, use_unicode=use_unicode, wrap_line=wrap_line, num_columns=num_columns
)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith("IPython"):
_init_ipython_printing(ip, stringify_func, use_latex, euler, forecolor, backcolor, fontsize, latex_mode)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True,
order=None,
use_unicode=None,
wrap_line=None,
num_columns=None,
no_global=False,
ip=None):
"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify;
if False, use sstrrepr to stringify.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
wrap_line: boolean
If True, lines will wrap at the end;
if False, they will not wrap but continue as one line.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns;
if None, number of columns before wrapping is set to terminal width.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
if not no_global:
Printer.set_global_settings(order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: _stringify_func(
expr,
order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith('IPython'):
_init_ipython_printing(ip, stringify_func)
else:
_init_python_printing(stringify_func)
def init_printing(pretty_print=True, order=None, use_unicode=None,
use_latex=None, wrap_line=None, num_columns=None,
no_global=False, ip=None, euler=False, forecolor='Black',
backcolor='Transparent', fontsize='10pt',
latex_mode='equation*'):
"""
Initializes pretty-printer depending on the environment.
Parameters
==========
pretty_print: boolean
If True, use pretty_print to stringify;
if False, use sstrrepr to stringify.
order: string or None
There are a few different settings for this parameter:
lex (default), which is lexographic order;
grlex, which is graded lexographic order;
grevlex, which is reversed graded lexographic order;
old, which is used for compatibility reasons and for long expressions;
None, which sets it to lex.
use_unicode: boolean or None
If True, use unicode characters;
if False, do not use unicode characters.
use_latex: string, boolean, or None
If True, use default latex rendering in GUI interfaces (png and
mathjax);
if False, do not use latex rendering;
if 'png', enable latex rendering with an external latex compiler,
falling back to matplotlib if external compilation fails;
if 'matplotlib', enable latex rendering with matplotlib;
if 'mathjax', enable latex text generation, for example MathJax
rendering in IPython notebook or text rendering in LaTeX documents
wrap_line: boolean
If True, lines will wrap at the end;
if False, they will not wrap but continue as one line.
num_columns: int or None
If int, number of columns before wrapping is set to num_columns;
if None, number of columns before wrapping is set to terminal width.
no_global: boolean
If True, the settings become system wide;
if False, use just for this console/session.
ip: An interactive console
This can either be an instance of IPython,
or a class that derives from code.InteractiveConsole.
Examples
========
>>> from sympy.interactive import init_printing
>>> from sympy import Symbol, sqrt
>>> from sympy.abc import x, y
>>> sqrt(5)
sqrt(5)
>>> init_printing(pretty_print=True) # doctest: +SKIP
>>> sqrt(5) # doctest: +SKIP
___
\/ 5
>>> theta = Symbol('theta') # doctest: +SKIP
>>> init_printing(use_unicode=True) # doctest: +SKIP
>>> theta # doctest: +SKIP
\u03b8
>>> init_printing(use_unicode=False) # doctest: +SKIP
>>> theta # doctest: +SKIP
theta
>>> init_printing(order='lex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grlex') # doctest: +SKIP
>>> str(y + x + y**2 + x**2) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(order='grevlex') # doctest: +SKIP
>>> str(y * x**2 + x * y**2) # doctest: +SKIP
x**2*y + x*y**2
>>> init_printing(order='old') # doctest: +SKIP
>>> str(x**2 + y**2 + x + y) # doctest: +SKIP
x**2 + x + y**2 + y
>>> init_printing(num_columns=10) # doctest: +SKIP
>>> x**2 + x + y**2 + y # doctest: +SKIP
x + y +
x**2 + y**2
"""
import sys
from sympy.printing.printer import Printer
if pretty_print:
from sympy.printing import pretty as stringify_func
else:
from sympy.printing import sstrrepr as stringify_func
# Even if ip is not passed, double check that not in IPython shell
if ip is None:
try:
ip = get_ipython()
except NameError:
pass
if ip and pretty_print:
try:
import IPython
# IPython 1.0 deprecates the frontend module, so we import directly
# from the terminal module to prevent a deprecation message from being
# shown.
if IPython.__version__ >= '1.0':
from IPython.terminal.interactiveshell import TerminalInteractiveShell
else:
from IPython.frontend.terminal.interactiveshell import TerminalInteractiveShell
from code import InteractiveConsole
except ImportError:
pass
else:
# This will be True if we are in the qtconsole or notebook
if not isinstance(ip, (InteractiveConsole, TerminalInteractiveShell)) \
and 'ipython-console' not in ''.join(sys.argv):
if use_unicode is None:
debug("init_printing: Setting use_unicode to True")
use_unicode = True
if use_latex is None:
debug("init_printing: Setting use_latex to True")
use_latex = True
if not no_global:
Printer.set_global_settings(order=order, use_unicode=use_unicode,
wrap_line=wrap_line, num_columns=num_columns)
else:
_stringify_func = stringify_func
if pretty_print:
stringify_func = lambda expr: \
_stringify_func(expr, order=order,
use_unicode=use_unicode,
wrap_line=wrap_line,
num_columns=num_columns)
else:
stringify_func = lambda expr: _stringify_func(expr, order=order)
if ip is not None and ip.__module__.startswith('IPython'):
_init_ipython_printing(ip, stringify_func, use_latex, euler, forecolor,
backcolor, fontsize, latex_mode)
else:
_init_python_printing(stringify_func)
from sympy import *
from sympy.parsing.sympy_parser import parse_expr
from sympy.solvers import solve
from sympy.printing.printer import Printer
Printer.set_global_settings(num_columns=2000)
precision = 5
def calTrusses(trussesElements, constraints, forces, A, E):
f = {}
us = set()
for e, i, j, l, angle in trussesElements:
f[Symbol('f' + str(i) + 'x')] = 0
f[Symbol('f' + str(i) + 'y')] = 0
f[Symbol('f' + str(j) + 'x')] = 0
f[Symbol('f' + str(j) + 'y')] = 0
us.add(i)
us.add(j)
emptyF = f.copy()
us = [Symbol('u' + str(u) + p) for u in list(us) for p in ['x', 'y']]
for e, i, j, l, angle in trussesElements:
angle = rad(angle)
k = N(A * E / l, precision)
K = UnevaluatedExpr(k) * UnevaluatedExpr(
N(
Matrix([
[
def _init_printing(
str_format=None,
repr_format=None,
caching=True,
ascii_printer='qalgebra.printing.asciiprinter.QalgebraAsciiPrinter',
ascii_sympy_printer='qalgebra.printing.sympy.SympyStrPrinter',
ascii_settings=None,
unicode_printer='qalgebra.printing.unicodeprinter.QalgebraUnicodePrinter',
unicode_sympy_printer='qalgebra.printing.sympy.SympyUnicodePrinter',
unicode_settings=None,
latex_printer='qalgebra.printing.latexprinter.QalgebraLatexPrinter',
latex_sympy_printer='qalgebra.printing.sympy.SympyLatexPrinter',
latex_settings=None,
_freeze=False,
**settings):
# Note: the *_printer args are undocumented, it's preferable to use them
# through an INI file only
logger = logging.getLogger(__name__)
freeze = defaultdict(dict)
freeze[SympyPrinter][
'_global_settings'] = SympyPrinter._global_settings.copy()
# Putting the settings in the _global_settings dict for SympyPrinter makes
# sure that any setting that is acceptable to any Printer that is newly
# instantiated is used automatically. Settings in _global_settings that are
# not in the _default_settings of a Printer will be silently ignored.
SympyPrinter.set_global_settings(**settings)
# Note that this is the *only* mechanism by which we handle the settings;
# no settings are passed to any specific Printer below -- Printer-specific
# settings are possible only when using an INI file.
freeze[QalgebraBasePrinter][
'_allow_caching'] = QalgebraBasePrinter._allow_caching
QalgebraBasePrinter._allow_caching = caching
print_map = {
# print fct printer cls sympy printer class settings
'ascii': (ascii_printer, ascii_sympy_printer, ascii_settings),
'unicode': (unicode_printer, unicode_sympy_printer, unicode_settings),
'latex': (latex_printer, latex_sympy_printer, latex_settings),
}
for name in print_map.keys():
print_func = _PRINT_FUNC[name]
qalgebra_printer_address, sympy_printer_address, settings = print_map[
name]
if settings is None:
settings = {}
if hasattr(print_func, '_printer_cls'):
freeze[print_func]['_printer_cls'] = print_func._printer_cls
freeze[print_func._printer_cls][
'sympy_printer_cls'] = print_func._printer_cls.sympy_printer_cls
if hasattr(print_func, 'printer'):
freeze[print_func]['printer'] = print_func.printer
print_func._printer_cls = _printer_cls(name + '_printer',
qalgebra_printer_address)
print_func._printer_cls.sympy_printer_cls = _printer_cls(
name + '_sympy_printer',
sympy_printer_address,
require_base=SympyPrinter,
)
# instantiation of sympy_printer happens in init-routine (which is why
# the sympy_printer_cls must be set first!)
print_func.printer = print_func._printer_cls(settings=settings)
# set up the __str__ and __repr__ printers
try:
has_unicode = "UTF-8" in sys.stdout.encoding
except TypeError:
has_unicode = False
logger.debug("Terminal supports unicode: %s (autodetect)", has_unicode)
if repr_format == 'unicode':
has_unicode = True
_PRINT_FUNC['tree'] = partial(tree, unicode=has_unicode)
if str_format is None:
str_format = 'unicode' if has_unicode else 'ascii'
logger.debug("Setting __str__ format to %s", str_format)
try:
str_func = _PRINT_FUNC[str_format]
except KeyError:
raise ValueError("str_format must be one of %s" %
", ".join(_PRINT_FUNC.keys()))
if repr_format is None:
repr_format = 'unicode' if has_unicode else 'ascii'
logger.debug("Setting __repr__ format to %s" % repr_format)
try:
repr_func = _PRINT_FUNC[repr_format]
except KeyError:
raise ValueError("repr_format must be one of %s" %
", ".join(_PRINT_FUNC.keys()))
from qalgebra.core.abstract_algebra import Expression
freeze[Expression]['__str__'] = Expression.__str__
freeze[Expression]['__repr__'] = Expression.__repr__
freeze[Expression]['_repr_latex_'] = Expression._repr_latex_
Expression.__str__ = lambda self: str_func(self)
Expression.__repr__ = lambda self: repr_func(self)
Expression._repr_latex_ = lambda self: "$" + latex(self) + "$"
if _freeze:
return freeze
