Python dup_revert Examples

Example #1

File: test_densetools.py Project: FireJade/sympy

def test_dup_revert():
    f = [-QQ(1, 720), QQ(0), QQ(1, 24), QQ(0), -QQ(1, 2), QQ(0), QQ(1)]
    g = [QQ(61, 720), QQ(0), QQ(5, 24), QQ(0), QQ(1, 2), QQ(0), QQ(1)]

    assert dup_revert(f, 8, QQ) == g

    raises(NotReversible, lambda: dup_revert([QQ(1), QQ(0)], 3, QQ))

Example #2

File: test_densetools.py Project: PWJ1900/Rlearncirq

def test_dup_revert():
    f = [-QQ(1, 720), QQ(0), QQ(1, 24), QQ(0), -QQ(1, 2), QQ(0), QQ(1)]
    g = [QQ(61, 720), QQ(0), QQ(5, 24), QQ(0), QQ(1, 2), QQ(0), QQ(1)]

    assert dup_revert(f, 8, QQ) == g

    raises(NotReversible, lambda: dup_revert([QQ(1), QQ(0)], 3, QQ))

Example #3

File: polyclasses.py Project: fxkr/sympy

 def revert(f, n):
     """Compute `f**(-1)` mod `x**n`. """
     if not f.lev:
         return f.per(dup_revert(f.rep, n, f.dom))
     else:
         raise ValueError('univariate polynomial expected')

Example #4

 def revert(f, n):
     """Compute `f**(-1)` mod `x**n`. """
     if not f.lev:
         return f.per(dup_revert(f.rep, n, f.dom))
     else:
         raise ValueError('univariate polynomial expected')