Python exp_reの例

コード例 #1

ファイル: 55869_test_formal.py プロジェクト: archit-p/Handwritten-Equation-Solver

def test_exp_re():
    d = -f(x) + Derivative(f(x), x)
    assert exp_re(d, r, k) == -r(k) + r(k + 1)

    d = f(x) + Derivative(f(x), x, x)
    assert exp_re(d, r, k) == r(k) + r(k + 2)

    d = f(x) + Derivative(f(x), x) + Derivative(f(x), x, x)
    assert exp_re(d, r, k) == r(k) + r(k + 1) + r(k + 2)

    d = Derivative(f(x), x) + Derivative(f(x), x, x)
    assert exp_re(d, r, k) == r(k) + r(k + 1)

    d = Derivative(f(x), x, 3) + Derivative(f(x), x, 4) + Derivative(f(x))
    assert exp_re(d, r, k) == r(k) + r(k + 2) + r(k + 3)

コード例 #2

ファイル: test_formal.py プロジェクト: Carreau/sympy

def test_exp_re():
    d = -f(x) + Derivative(f(x), x)
    assert exp_re(d, r, k) == -r(k) + r(k + 1)

    d = f(x) + Derivative(f(x), x, x)
    assert exp_re(d, r, k) == r(k) + r(k + 2)

    d = f(x) + Derivative(f(x), x) + Derivative(f(x), x, x)
    assert exp_re(d, r, k) == r(k) + r(k + 1) + r(k + 2)

    d = Derivative(f(x), x) + Derivative(f(x), x, x)
    assert exp_re(d, r, k) == r(k) + r(k + 1)

    d = Derivative(f(x), x, 3) + Derivative(f(x), x, 4) + Derivative(f(x))
    assert exp_re(d, r, k) == r(k) + r(k + 2) + r(k + 3)