Module Scalar

module Scalar: sig .. end

type t =

`\|`	`Float of float`
`\|`	`Mpqf of Mpqf.t`
`\|`	`Mpfrf of Mpfrf.t`

APRON Scalar numbers.

See Mpqf for operations on GMP multiprecision rational numbers and Mpfr for operations on MPFR multi-precision floating-point numbers.

val of_mpq : Mpq.t -> t

val of_mpqf : Mpqf.t -> t

val of_int : int -> t

val of_frac : int -> int -> t

Create a scalar of type Mpqf from resp.

A multi-precision rational Mpq.t
A multi-precision rational Mpqf.t
an integer
a fraction x/y

val of_mpfr : Mpfr.t -> t

val of_mpfrf : Mpfrf.t -> t

Create a scalar of type Mpfrf with the given value

val of_float : float -> t

Create a scalar of type Float with the given value

val of_infty : int -> t

Create a scalar of type Float with the value multiplied by infinity (resulting in minus infinity, zero, or infinity

val is_infty : t -> int

Infinity test. is_infty x returns -1 if x is -oo, 1 if x is +oo, and 0 if x is finite.

val sgn : t -> int

Return the sign of the coefficient, which may be a negative value, zero or a positive value.

val cmp : t -> t -> int

Compare two coefficients, possibly converting to Mpqf.t. compare x y returns a negative number if x is less than y, 0 if they ar equal, and a positive number if x is greater than y.

val cmp_int : t -> int -> int

Compare a coefficient with an integer

val equal : t -> t -> bool

Equality test, possibly using a conversion to Mpqf.t. Return true if the 2 values are equal. Two infinite values of the same signs are considered as equal.

val equal_int : t -> int -> bool

Equality test with an integer

val neg : t -> t

Negation

val to_string : t -> string

Conversion to string, using string_of_double, Mpqf.to_string or Mpfr.to_string

val print : Stdlib.Format.formatter -> t -> unit

Print a coefficient