The highest tagged major version is v2.

mathutil

package

v1.3.9 Latest Latest Go to latest Published: Jun 1, 2023 License: MIT Imports: 4 Imported by: 1

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Repository

github.com/duke-git/lancet

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Documentation ¶

Overview ¶

Package mathutil implements some functions for math calculation.

Index ¶

func AngleToRadian(angle float64) float64
func Cos(radian float64, precision ...int) float64
func Exponent(x, n int64) int64
func Factorial(x uint) uint
func Fibonacci(first, second, n int) int
func GCD(integers ...int) int
func IsPrime(n int) bool
func LCM(integers ...int) int
func Percent(val, total float64, n int) float64
func PointDistance(x1, y1, x2, y2 float64) float64
func RadianToAngle(radian float64) float64
func RoundToFloat(x float64, n int) float64
func RoundToString(x float64, n int) string
func Sin(radian float64, precision ...int) float64
func TruncRound(x float64, n int) float64

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func AngleToRadian ¶ added in v1.3.8

func AngleToRadian(angle float64) float64

AngleToRadian converts angle value to radian value.

func Cos ¶ added in v1.3.9

func Cos(radian float64, precision ...int) float64

Cos returns the cosine of the radian argument.

func Exponent ¶

func Exponent(x, n int64) int64

Exponent calculate x^n

func Factorial ¶

func Factorial(x uint) uint

Factorial calculate x!

func Fibonacci ¶

func Fibonacci(first, second, n int) int

Fibonacci calculate fibonacci number before n

func GCD ¶ added in v1.3.9

func GCD(integers ...int) int

GCD return greatest common divisor (GCD) of integers.

func IsPrime ¶ added in v1.3.8

func IsPrime(n int) bool

IsPrimes checks if number is prime number.

func LCM ¶ added in v1.3.9

func LCM(integers ...int) int

LCM return Least Common Multiple (LCM) of integers.

func Percent ¶

func Percent(val, total float64, n int) float64

Percent calculate the percentage of val to total

func PointDistance ¶ added in v1.3.8

func PointDistance(x1, y1, x2, y2 float64) float64

PointDistance get two points distance.

func RadianToAngle ¶ added in v1.3.8

func RadianToAngle(radian float64) float64

RadianToAngle converts radian value to angle value.

func RoundToFloat ¶

func RoundToFloat(x float64, n int) float64

RoundToFloat round up to n decimal places

func RoundToString ¶

func RoundToString(x float64, n int) string

RoundToString round up to n decimal places

func Sin ¶ added in v1.3.9

func Sin(radian float64, precision ...int) float64

Cos returns the sine of the radian argument.

func TruncRound ¶

func TruncRound(x float64, n int) float64

TruncRound round off n decimal places

Types ¶

This section is empty.

Source Files ¶

View all Source files

mathutil.go

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