math32

Documentation

Index

• Constants
• Variables
• func Abs(x float32) float32
• func Copysign(x, y float32) float32
• func Cos(x float32) float32
• func Inf(sign int) float32
• func IsInf(f float32, sign int) bool
• func IsNaN(f float32) (is bool)
• func NaN() float32
• func Signbit(x float32) bool
• func Sin(x float32) float32
• func Sincos(x float32) (sin, cos float32)
• func Sqrt(x float32) float32
• func Tan(x float32) float32

Constants

const Pi float32 = float32(math.Pi)

Variables

var CosGo = cos

var SinGo = sin

var TanGo = tan

Functions

func Abs

func Abs(x float32) float32

Abs returns the absolute value of x.

Special cases are:

Abs(±Inf) = +Inf
Abs(NaN) = NaN

func Copysign

func Copysign(x, y float32) float32

Copysign returns a value with the magnitude of x and the sign of y.

func Cos

func Cos(x float32) float32

Cos returns the cosine of the radian argument x.

Special cases are:

Cos(±Inf) = NaN
Cos(NaN) = NaN

func Inf

func Inf(sign int) float32

Inf returns positive infinity if sign >= 0, negative infinity if sign < 0.

func IsInf

func IsInf(f float32, sign int) bool

IsInf reports whether f is an infinity, according to sign. If sign > 0, IsInf reports whether f is positive infinity. If sign < 0, IsInf reports whether f is negative infinity. If sign == 0, IsInf reports whether f is either infinity.

func IsNaN

func IsNaN(f float32) (is bool)

IsNaN reports whether f is an IEEE 754 “not-a-number” value.

func NaN

func NaN() float32

NaN returns an IEEE 754 “not-a-number” value.

func Signbit

func Signbit(x float32) bool

Signbit returns true if x is negative or negative zero.

func Sin

func Sin(x float32) float32

Sin returns the sine of the radian argument x.

Special cases are:

Sin(±0) = ±0
Sin(±Inf) = NaN
Sin(NaN) = NaN

func Sincos

func Sincos(x float32) (sin, cos float32)

Sincos returns Sin(x), Cos(x).

Special cases are:

Sincos(±0) = ±0, 1
Sincos(±Inf) = NaN, NaN
Sincos(NaN) = NaN, NaN

func Sqrt

func Sqrt(x float32) float32

Sqrt returns the square root of x. For more information see: https://golang.org/pkg/math/#Sqrt

func Tan

func Tan(x float32) float32

Tan returns the tangent of the radian argument x.

Special cases are:

Tan(±0) = ±0
Tan(±Inf) = NaN
Tan(NaN) = NaN