rust/src/libcore/f64.rs

/*
Module: f64

Floating point operations and constants for `f64`s

This exposes the same operations as `math`, just for `f64` even though
they do not show up in the docs right now!
*/

import cmath::f64::*;

export
    acos, asin, atan, atan2, ceil, cos, cosh, exp, abs, floor, fmod,
    frexp, ldexp, ln, ln1p, log10, log2, modf, rint, round, pow, sin,
    sinh, sqrt, tan, tanh, trunc, t;

export radix, mantissa_digits, digits, epsilon, min_value, max_value,
       min_exp, max_exp, min_10_exp, max_10_exp;

export consts;

type t = f64;

/* Module: consts */
mod consts {

    /*
    Const: pi

    Archimedes' constant
    */
    const pi: f64 = 3.14159265358979323846264338327950288f64;

    /*
    Const: frac_pi_2

    pi/2.0
    */
    const frac_pi_2: f64 = 1.57079632679489661923132169163975144f64;

    /*
    Const: frac_pi_4

    pi/4.0
    */
    const frac_pi_4: f64 = 0.785398163397448309615660845819875721f64;

    /*
    Const: frac_1_pi

    1.0/pi
    */
    const frac_1_pi: f64 = 0.318309886183790671537767526745028724f64;

    /*
    Const: frac_2_pi

    2.0/pi
    */
    const frac_2_pi: f64 = 0.636619772367581343075535053490057448f64;

    /*
    Const: frac_2_sqrtpi

    2.0/sqrt(pi)
    */
    const frac_2_sqrtpi: f64 = 1.12837916709551257389615890312154517f64;

    /*
    Const: sqrt2

    sqrt(2.0)
    */
    const sqrt2: f64 = 1.41421356237309504880168872420969808f64;

    /*
    Const: frac_1_sqrt2

    1.0/sqrt(2.0)
    */
    const frac_1_sqrt2: f64 = 0.707106781186547524400844362104849039f64;

    /*
    Const: e

    Euler's number
    */
    const e: f64 = 2.71828182845904523536028747135266250f64;

    /*
    Const: log2_e

    log2(e)
    */
    const log2_e: f64 = 1.44269504088896340735992468100189214f64;

    /*
    Const: log10_e

    log10(e)
    */
    const log10_e: f64 = 0.434294481903251827651128918916605082f64;

    /*
    Const: ln_2

    ln(2.0)
    */
    const ln_2: f64 = 0.693147180559945309417232121458176568f64;

    /*
    Const: ln_10

    ln(10.0)
    */
    const ln_10: f64 = 2.30258509299404568401799145468436421f64;
}

// These are not defined inside consts:: for consistency with
// the integer types

// PORT check per architecture

const radix: uint = 2u;

const mantissa_digits: uint = 53u;
const digits: uint = 15u;

const epsilon: f64 = 2.2204460492503131e-16f64;

const min_value: f64 = 2.2250738585072014e-308f64;
const max_value: f64 = 1.7976931348623157e+308f64;

const min_exp: int = -1021;
const max_exp: int = 1024;

const min_10_exp: int = -307;
const max_10_exp: int = 308;

//
// Local Variables:
// mode: rust
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// End:
//