package core_kernel

  1. Overview
  2. Docs
package core_kernel
Legend:
Library
Module
Module type
Parameter
Class
Class type

Floating-point numbers.

type t = Base.Float.t
include sig ... end
val typerep_of_t : t Typerep_lib.Std.Typerep.t
val typename_of_t : t Typerep_lib.Std.Typename.t
module Robust_compare : sig ... end

The results of robust comparisons on nan should be considered undefined.

include Robust_compare.S
val robust_comparison_tolerance : Base.Float.t

intended to be a tolerance on human-entered floats

include Robustly_comparable.S with type t := Base.Float.t
val (>=.) : Base.Float.t -> Base.Float.t -> bool
val (<=.) : Base.Float.t -> Base.Float.t -> bool
val (=.) : Base.Float.t -> Base.Float.t -> bool
val (>.) : Base.Float.t -> Base.Float.t -> bool
val (<.) : Base.Float.t -> Base.Float.t -> bool
val (<>.) : Base.Float.t -> Base.Float.t -> bool
val robustly_compare : Base.Float.t -> Base.Float.t -> int
module O : sig ... end
module Terse : sig ... end
include Identifiable.S with type t := t and type comparator_witness := Base.Float.comparator_witness
include sig ... end
val bin_read_t : t Bin_prot.Read.reader
val __bin_read_t__ : (Base.Int.t -> t) Bin_prot.Read.reader
val bin_reader_t : t Bin_prot.Type_class.reader
val bin_size_t : t Bin_prot.Size.sizer
val bin_write_t : t Bin_prot.Write.writer
val bin_writer_t : t Bin_prot.Type_class.writer
val bin_shape_t : Bin_prot.Shape.t
include Identifiable.S_common with type t := t
include sig ... end
include Comparable.S_binable with type t := t with type comparator_witness := Base.Float.comparator_witness
include Base.Comparable_intf.S with type t := t with type comparator_witness := Base.Float.comparator_witness
module Replace_polymorphic_compare = Float.Replace_polymorphic_compare
include Comparator.S with type t := t with type comparator_witness := Base.Float.comparator_witness
module Map : sig ... end
module Set : sig ... end
include Hashable.S_binable with type t := t
include sig ... end
val hashable : t Core_kernel__.Hashtbl.Hashable.t
module Table : sig ... end
module Hash_set : sig ... end
module Hash_queue : sig ... end
include module type of struct include Base.Float end with type t := t with module O := Base.Float.O with module Terse := Base.Float.Terse
val of_float : float -> t
val to_float : t -> float
val hash_fold_t : Base__.Ppx_hash_lib.Std.Hash.state -> t -> Base__.Ppx_hash_lib.Std.Hash.state
val hash : t -> Base__.Ppx_hash_lib.Std.Hash.hash_value
val t_of_sexp : Base__.Sexplib.Sexp.t -> t
val sexp_of_t : t -> Base__.Sexplib.Sexp.t
val of_string : string -> t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val compare : t -> t -> int
val min : t -> t -> t
val max : t -> t -> t
val ascending : t -> t -> int
val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool
val clamp_exn : t -> min:t -> max:t -> t
val clamp : t -> min:t -> max:t -> t Base__.Or_error.t
type comparator_witness = Base__Float.comparator_witness
val comparator : (t, comparator_witness) Base__.Comparator.comparator
val validate_lbound : min:t Base__.Maybe_bound.t -> t Base__.Validate.check
val validate_ubound : max:t Base__.Maybe_bound.t -> t Base__.Validate.check
val validate_bound : min:t Base__.Maybe_bound.t -> max:t Base__.Maybe_bound.t -> t Base__.Validate.check
val pp : Base__.Import.Caml.Format.formatter -> t -> unit
val validate_positive : t Base__.Validate.check
val validate_non_negative : t Base__.Validate.check
val validate_negative : t Base__.Validate.check
val validate_non_positive : t Base__.Validate.check
val is_positive : t -> bool
val is_non_negative : t -> bool
val is_negative : t -> bool
val is_non_positive : t -> bool
val validate_ordinary : t Base__.Validate.check
val nan : t
val infinity : t
val neg_infinity : t
val max_value : t
val min_value : t
val zero : t
val one : t
val minus_one : t
val pi : t
val sqrt_pi : t
val sqrt_2pi : t
val euler : t
val epsilon_float : t
val max_finite_value : t
val min_positive_subnormal_value : t
val min_positive_normal_value : t
val to_int64_preserve_order : t -> int64 option
val to_int64_preserve_order_exn : t -> int64
val of_int64_preserve_order : int64 -> t
val one_ulp : [ `Down | `Up ] -> t -> t
val of_int : int -> t
val to_int : t -> int
val of_int64 : int64 -> t
val to_int64 : t -> int64
val round : ?dir:[ `Down | `Nearest | `Up | `Zero ] -> t -> t
val iround : ?dir:[ `Down | `Nearest | `Up | `Zero ] -> t -> int option
val iround_exn : ?dir:[ `Down | `Nearest | `Up | `Zero ] -> t -> int
val round_towards_zero : t -> t
val round_down : t -> t
val round_up : t -> t
val round_nearest : t -> t
val round_nearest_half_to_even : t -> t
val iround_towards_zero : t -> int option
val iround_down : t -> int option
val iround_up : t -> int option
val iround_nearest : t -> int option
val iround_towards_zero_exn : t -> int
val iround_down_exn : t -> int
val iround_up_exn : t -> int
val iround_nearest_exn : t -> int
val int63_round_down_exn : t -> Base__.Int63.t
val int63_round_up_exn : t -> Base__.Int63.t
val int63_round_nearest_exn : t -> Base__.Int63.t
val iround_lbound : t
val iround_ubound : t
val is_nan : t -> bool
val is_inf : t -> bool
val min_inan : t -> t -> t
val max_inan : t -> t -> t
val (+) : t -> t -> t
val (-) : t -> t -> t
val (*) : t -> t -> t
val (/) : t -> t -> t
val (~-) : t -> t
module Parts : sig ... end
val modf : t -> Parts.t
val mod_float : t -> t -> t
val add : t -> t -> t
val sub : t -> t -> t
val neg : t -> t
val scale : t -> t -> t
val abs : t -> t
module O_dot : sig ... end
val to_string_hum : ?delimiter:char -> ?decimals:int -> ?strip_zero:bool -> t -> string
val to_padded_compact_string : t -> string
val int_pow : t -> int -> t
val ldexp : t -> int -> t
val frexp : t -> t * int
val log10 : t -> t
val expm1 : t -> t
val log1p : t -> t
val copysign : t -> t -> t
val cos : t -> t
val sin : t -> t
val tan : t -> t
val acos : t -> t
val asin : t -> t
val atan : t -> t
val atan2 : t -> t -> t
val hypot : t -> t -> t
val cosh : t -> t
val sinh : t -> t
val tanh : t -> t
val sqrt : t -> t
val exp : t -> t
val log : t -> t
module Class : sig ... end
val classify : t -> Class.t
val is_finite : t -> bool
val sign_exn : t -> Base__.Sign.t
module Sign_or_nan : sig ... end
val sign_or_nan : t -> Sign_or_nan.t
val create_ieee : negative:bool -> exponent:int -> mantissa:Base__.Int63.t -> t Base__.Or_error.t
val create_ieee_exn : negative:bool -> exponent:int -> mantissa:Base__.Int63.t -> t
val ieee_negative : t -> bool
val ieee_exponent : t -> int
val ieee_mantissa : t -> Base__.Int63.t
module Private : sig ... end
val to_string_12 : t -> Base.String.t

to_string_12 x builds a string representing x using up to 12 significant digits. It loses precision. You can use "%{Float#12}" in formats, but consider "%.12g", "%{Float#hum}", or "%{Float}" as alternatives.

val to_string : t -> Base.String.t

to_string x builds a string s representing the float x that guarantees the round trip, i.e., Float.equal x (Float.of_string s).

It usually yields as few significant digits as possible. That is, it won't print 3.14 as 3.1400000000000001243. The only exception is that occasionally it will output 17 significant digits when the number can be represented with just 16 (but not 15 or fewer) of them.

val to_string_round_trippable : t -> Base.String.t
  • deprecated [since 2017-04] Use [Float.to_string]
include Quickcheckable.S with type t := t
val shrinker : t Quickcheck.Shrinker.t
val sign : t -> Sign.t
  • deprecated [since 2016-01] Replace [sign] with [robust_sign] or [sign_exn]
val robust_sign : t -> Sign.t

(Formerly sign) Uses robust comparison (so sufficiently small numbers are mapped to Zero). Also maps NaN to Zero. Using this function is weakly discouraged.

val gen_uniform_excl : t -> t -> t Quickcheck.Generator.t

gen_uniform_excl lo hi creates a Quickcheck generator producing finite t values between lo and hi, exclusive. The generator approximates a uniform distribution over the interval (lo, hi). Raises an exception if lo is not finite, hi is not finite, or the requested range is empty.

The implementation chooses values uniformly distributed between 0 (inclusive) and 1 (exclusive) up to 52 bits of precision, then scales that interval to the requested range. Due to rounding errors and non-uniform floating point precision, the resulting distribution may not be precisely uniform and may not include all values between lo and hi.

val gen_incl : t -> t -> t Quickcheck.Generator.t

gen_incl lo hi creates a Quickcheck generator that produces values between lo and hi, inclusive, approximately uniformly distributed, with extra weight given to generating the endpoints lo and hi. Raises an exception if lo is not finite, hi is not finite, or the requested range is empty.

val gen_finite : t Quickcheck.Generator.t

gen_finite produces all finite t values, excluding infinities and all NaN values.

val gen_positive : t Quickcheck.Generator.t

gen_positive produces all (strictly) positive finite t values.

val gen_negative : t Quickcheck.Generator.t

gen_negative produces all (strictly) negative finite t values.

val gen_without_nan : t Quickcheck.Generator.t

gen_without_nan produces all finite and infinite t values, excluding all NaN values.

OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct