def test_SciPyPrinter():
p = SciPyPrinter()
expr = acos(x)
assert 'numpy' not in p.module_imports
assert p.doprint(expr) == 'numpy.arccos(x)'
assert 'numpy' in p.module_imports
assert not any(m.startswith('scipy') for m in p.module_imports)
smat = SparseMatrix(2, 5, {(0, 1): 3})
assert p.doprint(smat) == \
'scipy.sparse.coo_matrix(([3], ([0], [1])), shape=(2, 5))'
assert 'scipy.sparse' in p.module_imports
assert p.doprint(S.GoldenRatio) == 'scipy.constants.golden_ratio'
assert p.doprint(S.Pi) == 'scipy.constants.pi'
assert p.doprint(S.Exp1) == 'numpy.e'
def test_airy_prime():
from sympy import airyaiprime, airybiprime
expr1 = airyaiprime(x)
expr2 = airybiprime(x)
prntr = SciPyPrinter()
assert prntr.doprint(expr1) == 'scipy.special.airy(x)[1]'
assert prntr.doprint(expr2) == 'scipy.special.airy(x)[3]'
prntr = NumPyPrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
prntr = PythonCodePrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
def test_airy():
from sympy.functions.special.bessel import (airyai, airybi)
expr1 = airyai(x)
expr2 = airybi(x)
prntr = SciPyPrinter()
assert prntr.doprint(expr1) == 'scipy.special.airy(x)[0]'
assert prntr.doprint(expr2) == 'scipy.special.airy(x)[2]'
prntr = NumPyPrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
prntr = PythonCodePrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
def test_issue_16535_16536():
from sympy import lowergamma, uppergamma
a = symbols('a')
expr1 = lowergamma(a, x)
expr2 = uppergamma(a, x)
prntr = SciPyPrinter()
assert prntr.doprint(expr1) == 'scipy.special.gamma(a)*scipy.special.gammainc(a, x)'
assert prntr.doprint(expr2) == 'scipy.special.gamma(a)*scipy.special.gammaincc(a, x)'
prntr = NumPyPrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
prntr = PythonCodePrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
def test_beta():
from sympy import beta
expr = beta(x, y)
prntr = SciPyPrinter()
assert prntr.doprint(expr) == 'scipy.special.beta(x, y)'
prntr = NumPyPrinter()
assert prntr.doprint(expr) == 'math.gamma(x)*math.gamma(y)/math.gamma(x + y)'
prntr = PythonCodePrinter()
assert prntr.doprint(expr) == 'math.gamma(x)*math.gamma(y)/math.gamma(x + y)'
prntr = PythonCodePrinter({'allow_unknown_functions': True})
assert prntr.doprint(expr) == 'math.gamma(x)*math.gamma(y)/math.gamma(x + y)'
prntr = MpmathPrinter()
assert prntr.doprint(expr) == 'mpmath.beta(x, y)'
def test_Integral():
from sympy import Integral, exp
single = Integral(exp(-x), (x, 0, oo))
double = Integral(x**2*exp(x*y), (x, -z, z), (y, 0, z))
indefinite = Integral(x**2, x)
evaluateat = Integral(x**2, (x, 1))
prntr = SciPyPrinter()
assert prntr.doprint(single) == 'scipy.integrate.quad(lambda x: numpy.exp(-x), 0, numpy.PINF)[0]'
assert prntr.doprint(double) == 'scipy.integrate.nquad(lambda x, y: x**2*numpy.exp(x*y), ((-z, z), (0, z)))[0]'
raises(NotImplementedError, lambda: prntr.doprint(indefinite))
raises(NotImplementedError, lambda: prntr.doprint(evaluateat))
prntr = MpmathPrinter()
assert prntr.doprint(single) == 'mpmath.quad(lambda x: mpmath.exp(-x), (0, mpmath.inf))'
assert prntr.doprint(double) == 'mpmath.quad(lambda x, y: x**2*mpmath.exp(x*y), (-z, z), (0, z))'
raises(NotImplementedError, lambda: prntr.doprint(indefinite))
raises(NotImplementedError, lambda: prntr.doprint(evaluateat))
def test_fresnel_integrals():
from sympy import fresnelc, fresnels
expr1 = fresnelc(x)
expr2 = fresnels(x)
prntr = SciPyPrinter()
assert prntr.doprint(expr1) == 'scipy.special.fresnel(x)[1]'
assert prntr.doprint(expr2) == 'scipy.special.fresnel(x)[0]'
prntr = NumPyPrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
prntr = PythonCodePrinter()
assert "Not supported" in prntr.doprint(expr1)
assert "Not supported" in prntr.doprint(expr2)
prntr = MpmathPrinter()
assert prntr.doprint(expr1) == 'mpmath.fresnelc(x)'
assert prntr.doprint(expr2) == 'mpmath.fresnels(x)'
def test_numerical_accuracy_functions():
prntr = SciPyPrinter()
assert prntr.doprint(expm1(x)) == 'numpy.expm1(x)'
assert prntr.doprint(log1p(x)) == 'numpy.log1p(x)'
assert prntr.doprint(cosm1(x)) == 'scipy.special.cosm1(x)'