def erf_i0
import bendtorch@1.3.0.0/main.bend as Bendtorchimport Base
1167# the pieces are chosen from the top down, so that only one polynomial is computed (each test is a match on a Bool
1168# parameter); b is "a is at least the piece's lower end"
1169def erf_i0(b: Bool, +x: F32, +a: F32) -> F32:
1170 match b:
1171 case True{}: erf_sign(x, erf_p0((a - 1.0 : F32)))
1172 case False{}: erf_small(x)