>>> modF 1.5 1.2 0.30000000000000004
a *| one == a (a + b) *| c == (a *| c) + (b *| c) c |* (a + b) == (c |* a) + (c |* b) a *| zero == zero a *| b == b |* a
>>> divModF 1.5 1.2 (1.0,0.30000000000000004)