def test_content_mathml_order():
expr = x**3 + x**2*y + 3*x*y**3 + y**4
mp = MathMLContentPrinter({'order': 'lex'})
mml = mp._print(expr)
assert mml.childNodes[1].childNodes[0].nodeName == 'power'
assert mml.childNodes[1].childNodes[1].childNodes[0].data == 'x'
assert mml.childNodes[1].childNodes[2].childNodes[0].data == '3'
assert mml.childNodes[4].childNodes[0].nodeName == 'power'
assert mml.childNodes[4].childNodes[1].childNodes[0].data == 'y'
assert mml.childNodes[4].childNodes[2].childNodes[0].data == '4'
mp = MathMLContentPrinter({'order': 'rev-lex'})
mml = mp._print(expr)
assert mml.childNodes[1].childNodes[0].nodeName == 'power'
assert mml.childNodes[1].childNodes[1].childNodes[0].data == 'y'
assert mml.childNodes[1].childNodes[2].childNodes[0].data == '4'
assert mml.childNodes[4].childNodes[0].nodeName == 'power'
assert mml.childNodes[4].childNodes[1].childNodes[0].data == 'x'
assert mml.childNodes[4].childNodes[2].childNodes[0].data == '3'
def _expression_to_mathml(expr: Any,
printer: str = "content",
**settings: Any) -> str:
"""Convert sympy expression to MathML.
:param expr: sympy expression
:param printer: 'content' or 'presentation'
:param settings:
:return: Content or presentation MathML
"""
if printer == "presentation":
s = MathMLPresentationPrinter(settings)
else:
s = MathMLContentPrinter(settings)
xml = s._print(sympify(expr))
s.apply_patch()
pretty_xml = xml.toprettyxml()
s.restore_patch()
return str(pretty_xml)
def test_content_mathml_order():
expr = x**3 + x**2 * y + 3 * x * y**3 + y**4
mp = MathMLContentPrinter({'order': 'lex'})
mml = mp._print(expr)
assert mml.childNodes[1].childNodes[0].nodeName == 'power'
assert mml.childNodes[1].childNodes[1].childNodes[0].data == 'x'
assert mml.childNodes[1].childNodes[2].childNodes[0].data == '3'
assert mml.childNodes[4].childNodes[0].nodeName == 'power'
assert mml.childNodes[4].childNodes[1].childNodes[0].data == 'y'
assert mml.childNodes[4].childNodes[2].childNodes[0].data == '4'
mp = MathMLContentPrinter({'order': 'rev-lex'})
mml = mp._print(expr)
assert mml.childNodes[1].childNodes[0].nodeName == 'power'
assert mml.childNodes[1].childNodes[1].childNodes[0].data == 'y'
assert mml.childNodes[1].childNodes[2].childNodes[0].data == '4'
assert mml.childNodes[4].childNodes[0].nodeName == 'power'
assert mml.childNodes[4].childNodes[1].childNodes[0].data == 'x'
assert mml.childNodes[4].childNodes[2].childNodes[0].data == '3'
def test_printing1():
check(MathMLContentPrinter())
from sympy import diff, Integral, Limit, sin, Symbol, Integer, Rational, cos, \
tan, asin, acos, atan, sinh, cosh, tanh, asinh, acosh, atanh, E, I, oo, \
pi, GoldenRatio, EulerGamma, Sum, Eq, Ne, Ge, Lt, Float, Matrix, Basic, S, \
MatrixSymbol, Function, Derivative, log
from sympy.stats.rv import RandomSymbol
from sympy.printing.mathml import mathml, MathMLContentPrinter, MathMLPresentationPrinter, \
MathMLPrinter
from sympy.utilities.pytest import raises
x = Symbol('x')
y = Symbol('y')
mp = MathMLContentPrinter()
mpp = MathMLPresentationPrinter()
def test_mathml_printer():
m = MathMLPrinter()
assert m.doprint(1 + x) == mp.doprint(1 + x)
def test_content_printmethod():
assert mp.doprint(1 + x) == '<apply><plus/><ci>x</ci><cn>1</cn></apply>'
def test_content_mathml_core():
mml_1 = mp._print(1 + x)
assert mml_1.nodeName == 'apply'
nodes = mml_1.childNodes
assert len(nodes) == 3
assert nodes[0].nodeName == 'plus'
assert nodes[0].hasChildNodes() is False