def div_z
import bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend as F64import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend as W
405def div_z(+s: Bool, +ea: Nat, +fa: W.U64, +eb: Nat, +fb: W.U64, zb: Bool) -> F64:
406 match zb:
407 case True{}:
408 inf_or_nan(s, fin_zero(ea, fa))
409 case False{}:
410 div_za(s, ea, fa, eb, fb, fin_zero(ea, fa))