def test_dmp_deflate():
assert dmp_deflate([[]], 1, ZZ) == ((1, 1), [[]])
assert dmp_deflate([[2]], 1, ZZ) == ((1, 1), [[2]])
f = [[1, 0, 0], [], [1, 0], [], [1]]
assert dmp_deflate(f, 1, ZZ) == ((2, 1), [[1, 0, 0], [1, 0], [1]])
def deflate(f):
"""Reduce degree of `f` by mapping `x_i**m` to `y_i`. """
J, F = dmp_deflate(f.rep, f.lev, f.dom)
return J, f.per(F)
def deflate(f):
"""Reduce degree of `f` by mapping `x_i**m` to `y_i`. """
J, F = dmp_deflate(f.rep, f.lev, f.dom)
return J, f.per(F)