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src/s/y/sympy-0.7.5/sympy/integrals/tests/test_prde.py   sympy(Download)
"""Most of these tests come from the examples in Bronstein's book."""
from sympy import Poly, Matrix, S, symbols, I
from sympy.integrals.risch import DifferentialExtension
from sympy.integrals.prde import (prde_normal_denom, prde_special_denom,
    prde_linear_constraints, constant_system, prde_spde, prde_no_cancel_b_large,
def test_parametric_log_deriv():
    DE = DifferentialExtension(extension={'D': [Poly(1, x), Poly(1/x, t)]})
    assert parametric_log_deriv_heu(Poly(5*t**2 + t - 6, t), Poly(2*x*t**2, t),
    Poly(-1, t), Poly(x*t**2, t), DE) == \
        (2, 6, t*x**5)

src/s/y/sympy-HEAD/sympy/integrals/tests/test_prde.py   sympy(Download)
"""Most of these tests come from the examples in Bronstein's book."""
from sympy import Poly, Matrix, S, symbols, I
from sympy.integrals.risch import DifferentialExtension
from sympy.integrals.prde import (prde_normal_denom, prde_special_denom,
    prde_linear_constraints, constant_system, prde_spde, prde_no_cancel_b_large,
def test_parametric_log_deriv():
    DE = DifferentialExtension(extension={'D': [Poly(1, x), Poly(1/x, t)]})
    assert parametric_log_deriv_heu(Poly(5*t**2 + t - 6, t), Poly(2*x*t**2, t),
    Poly(-1, t), Poly(x*t**2, t), DE) == \
        (2, 6, t*x**5)