sig
val succ_float : float -> float
val pred_float : float -> float
val root : float -> int -> float
val fraction : ?error:float -> float -> int * int
val fma : float -> float -> float -> float
val fdim : float -> float -> float
val nextafter : float -> float -> float
val remainder : float -> float -> float
val trunc : float -> float
val round : float -> float
val nearbyint : float -> float
val tgamma : float -> float
val lgamma : float -> float
val erfc : float -> float
val erf : float -> float
val hypot : float -> float -> float
val cbrt : float -> float
val scalbn : float -> int -> float
val logb : float -> float
val log2 : float -> float
val log1p : float -> float
val ilogb : float -> int
val expm1 : float -> float
val exp2 : float -> float
val atanh : float -> float
val asinh : float -> float
val acosh : float -> float
val j0 : float -> float
val j1 : float -> float
val y0 : float -> float
val y1 : float -> float
end