def test_pretty_unicode_defaults():
use_unicode = pprint_use_unicode(True)
assert xpretty(Symbol('alpha')) == u'\u03b1'
pprint_use_unicode(False)
assert xpretty(Symbol('alpha')) == 'alpha'
pprint_use_unicode(use_unicode)
def test_pretty_unicode_defaults():
use_unicode = pprint_use_unicode(True)
assert xpretty(Symbol("alpha")) == u"\u03b1"
pprint_use_unicode(False)
assert xpretty(Symbol("alpha")) == "alpha"
pprint_use_unicode(use_unicode)
def main():
if sympy.__version__ != "1.0":
sys.exit(
"The doctests must be run against SymPy 1.0. Please install SymPy 1.0 and run them again."
)
full_text = ""
for file in files:
with open(file, 'r') as f:
s = f.read()
st = s.find(begin)
while st != -1:
if not (st >= len(skip)) or s[st - len(skip):st] != skip:
full_text += s[st + len(begin):s.find(end, st)]
st = s.find(begin, st + len(begin))
full_text = full_text.replace(r'\end{verbatim}', '')
with open(output_file, "w") as f:
f.write("'''\n %s \n'''" % full_text)
# force pprint to be in ascii mode in doctests
pprint_use_unicode(False)
# hook our nice, hash-stable strprinter
init_printing(pretty_print=False)
import test_full_paper
# find the doctest
module = pdoctest._normalize_module(test_full_paper)
tests = SymPyDocTestFinder().find(module)
test = tests[0]
runner = SymPyDocTestRunner(optionflags=pdoctest.ELLIPSIS
| pdoctest.NORMALIZE_WHITESPACE
| pdoctest.IGNORE_EXCEPTION_DETAIL)
runner._checker = SymPyOutputChecker()
old = sys.stdout
new = StringIO()
sys.stdout = new
future_flags = __future__.division.compiler_flag | __future__.print_function.compiler_flag
try:
f, t = runner.run(test,
compileflags=future_flags,
out=new.write,
clear_globs=False)
except KeyboardInterrupt:
raise
finally:
sys.stdout = old
if f > 0:
print(new.getvalue())
return 1
else:
return 0
def test_pretty_unicode_defaults():
use_unicode = pprint_use_unicode(True)
assert xpretty(Symbol('alpha')) == u'\u03b1'
pprint_use_unicode(False)
assert xpretty(Symbol('alpha')) == 'alpha'
pprint_use_unicode(use_unicode)
def setup_pprint():
from sympy import pprint_use_unicode, init_printing
# force pprint to be in ascii mode in doctests
pprint_use_unicode(False)
# hook our nice, hash-stable strprinter
init_printing(pretty_print=False)
def setup_pprint():
from sympy import pprint_use_unicode, init_printing
# force pprint to be in ascii mode in doctests
pprint_use_unicode(False)
# hook our nice, hash-stable strprinter
init_printing(pretty_print=False)
def setup_pprint():
from sympy import pprint_use_unicode
# force pprint to be in ascii mode in doctests
pprint_use_unicode(False)
# hook our nice, hash-stable strprinter
from sympy.interactive import init_printing
from sympy.printing import sstrrepr
init_printing(sstrrepr)
def setup_pprint():
from sympy import pprint_use_unicode
# force pprint to be in ascii mode in doctests
pprint_use_unicode(False)
# hook our nice, hash-stable strprinter
from sympy.interactive import init_printing
from sympy.printing import sstrrepr
init_printing(sstrrepr)
def main():
if sympy.__version__ != "1.0":
sys.exit("The doctests must be run against SymPy 1.0. Please install SymPy 1.0 and run them again.")
full_text = ""
for file in files:
with open(file, 'r') as f:
s = f.read()
st = s.find(begin)
while st != -1:
if not (st >= len(skip)) or s[st - len(skip) : st] != skip:
full_text += s[st + len(begin) : s.find(end, st)]
st = s.find(begin, st+ len(begin))
full_text = full_text.replace(r'\end{verbatim}', '')
with open(output_file, "w") as f:
f.write("'''\n %s \n'''" % full_text)
# force pprint to be in ascii mode in doctests
pprint_use_unicode(False)
# hook our nice, hash-stable strprinter
init_printing(pretty_print=False)
import test_full_paper
# find the doctest
module = pdoctest._normalize_module(test_full_paper)
tests = SymPyDocTestFinder().find(module)
test = tests[0]
runner = SymPyDocTestRunner(optionflags=pdoctest.ELLIPSIS |
pdoctest.NORMALIZE_WHITESPACE |
pdoctest.IGNORE_EXCEPTION_DETAIL)
runner._checker = SymPyOutputChecker()
old = sys.stdout
new = StringIO()
sys.stdout = new
future_flags = __future__.division.compiler_flag | __future__.print_function.compiler_flag
try:
f, t = runner.run(test, compileflags=future_flags,
out=new.write, clear_globs=False)
except KeyboardInterrupt:
raise
finally:
sys.stdout = old
if f > 0:
print(new.getvalue())
return 1
else:
return 0
def test_svm():
x = np.array([[3, 4, 1], [3, 3, 1]])
y = np.array([1, 1, -1])
N, M = x.shape
w = np.ones(M)
b = 0.0
# 定义变量
w1, w2, B, lam1, lam2, lam3 = sp.symbols('w1 w2 B lam1 lam2 lam3')
# 最小函数
f = (w1**2 + w2**2) / 2
# 约束条件
st1 = 1 - y[0] * (w1 * 3 + w2 * 3 + B)
st2 = 1 - y[1] * (w1 * 4 + w2 * 3 + B)
st3 = 1 - y[2] * (w1 * 1 + w2 * 1 + B)
# 定义拉格朗日乘子式
lagrange = f + lam1 * st1 + lam2 * st2 + lam3 * st3
sp.pprint_use_unicode(lagrange)
