Python dmp_abs Examples

Example #1

File: test_densearith.py Project: vperic/sympy

def test_dmp_abs():
    assert dmp_abs([ZZ(-1)], 0, ZZ) == [ZZ(1)]
    assert dmp_abs([QQ(-1,2)], 0, QQ) == [QQ(1,2)]

    assert dmp_abs([[[]]], 2, ZZ) == [[[]]]
    assert dmp_abs([[[ZZ(1)]]], 2, ZZ) == [[[ZZ(1)]]]
    assert dmp_abs([[[ZZ(-7)]]], 2, ZZ) == [[[ZZ(7)]]]

    assert dmp_abs([[[]]], 2, QQ) == [[[]]]
    assert dmp_abs([[[QQ(1,2)]]], 2, QQ) == [[[QQ(1,2)]]]
    assert dmp_abs([[[QQ(-7,9)]]], 2, QQ) == [[[QQ(7,9)]]]

Example #2

File: polyclasses.py Project: fxkr/sympy

 def abs(f):
     """Make all coefficients in `f` positive. """
     return f.per(dmp_abs(f.rep, f.lev, f.dom))

Example #3

 def abs(f):
     """Make all coefficients in `f` positive. """
     return f.per(dmp_abs(f.rep, f.lev, f.dom))