F64.modf: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend as F64
Lines 1057-1059 of bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&start_line=1057&end_line=1059

import Base

# (fractional part, integral part), both with the sign of x (Python's modf)
def modf(+x: F64) -> F64 & F64:
  mf_cls(x, Nat.is_eq(exp_field(x), 2047n))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&name=F64
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&name=exp_field
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&name=mf_cls