mathex

package
v0.1.2 Latest Latest
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 Go to latest Published: May 23, 2022 License: Apache-2.0 Imports: 7 Imported by: 0

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Index

Constants

View Source 
const (
	X_PI   = math.Pi * 3000.0 / 180.0
	OFFSET = 0.00669342162296594323
	AXIS   = 6378245.0
)

Variables

This section is empty.

Functions

func BD09toGCJ02 added in v0.0.8 

func BD09toGCJ02(lon, lat float64) (float64, float64)

BD09toGCJ02 百度坐标系->火星坐标系

func BD09toWGS84 added in v0.0.8 

func BD09toWGS84(lon, lat float64) (float64, float64)

BD09toWGS84 百度坐标系->WGS84坐标系

func CalRedPacket 

func CalRedPacket(total int32, num int32) ([]int32, error)

CalRedPacket provides tencent red packet algorithm MOD: 2016-06-01 23:03

func DeltaCompareFloat32 added in v0.0.5 

func DeltaCompareFloat32(expected float32, actual float32, delta float32) bool

func DeltaCompareFloat64 added in v0.0.5 

func DeltaCompareFloat64(expected float64, actual float64, delta float64) bool

func FormatInt added in v0.0.8 

func FormatInt(v int) string

func FormatInt16 added in v0.0.8 

func FormatInt16(v int16) string

func FormatInt16ToSlice added in v0.0.8 

func FormatInt16ToSlice(v int16) []byte

func FormatInt32 added in v0.0.8 

func FormatInt32(v int32) string

func FormatInt32ToSlice added in v0.0.8 

func FormatInt32ToSlice(v int32) []byte

func FormatInt64 added in v0.0.8 

func FormatInt64(v int64) string

func FormatInt64ToSlice added in v0.0.8 

func FormatInt64ToSlice(v int64) []byte

func FormatInt8 added in v0.0.8 

func FormatInt8(v int8) string

func FormatInt8ToSlice added in v0.0.8 

func FormatInt8ToSlice(v int8) []byte

func FormatIntToSlice added in v0.0.8 

func FormatIntToSlice(v int) []byte

func FormatUint added in v0.0.8 

func FormatUint(v uint) string

func FormatUint16 added in v0.0.8 

func FormatUint16(v uint16) string

func FormatUint16ToSlice added in v0.0.8 

func FormatUint16ToSlice(v uint16) []byte

func FormatUint32 added in v0.0.8 

func FormatUint32(v uint32) string

func FormatUint32ToSlice added in v0.0.8 

func FormatUint32ToSlice(v uint32) []byte

func FormatUint64 added in v0.0.8 

func FormatUint64(v uint64) string

func FormatUint64ToSlice added in v0.0.8 

func FormatUint64ToSlice(v uint64) []byte

func FormatUint8 added in v0.0.8 

func FormatUint8(v uint8) string

func FormatUint8ToSlice added in v0.0.8 

func FormatUint8ToSlice(v uint8) []byte

func FormatUintToSlice added in v0.0.8 

func FormatUintToSlice(v uint) []byte

func GCJ02toBD09 added in v0.0.8 

func GCJ02toBD09(lon, lat float64) (float64, float64)

GCJ02toBD09 火星坐标系->百度坐标系

func GCJ02toWGS84 added in v0.0.8 

func GCJ02toWGS84(lon, lat float64) (float64, float64)

GCJ02toWGS84 火星坐标系->WGS84坐标系

func Gcd 

func Gcd(x, y int64) int64

Gcd 最大公约数:(辗转相除法)

func GetPrimes added in v0.0.6 

func GetPrimes(max int) []int

GetPrimes 用于获取小于或等于参数max的所有质数。 本函数使用的是爱拉托逊斯筛选法（Sieve Of Eratosthenes）。

func IsDoubleStr added in v0.0.7 

func IsDoubleStr(doubelstr string) (bool, error)

IsDoubleStr 验证是否是浮点字符串

func IsPowerOf2 

func IsPowerOf2(x int) bool

func Lcm 

func Lcm(x, y int64) int64

Lcm 最小公倍数:((x*y)/最大公约数)

func MaxInt added in v0.0.5 

func MaxInt(a int, b int) int

func MaxInt16 added in v0.0.5 

func MaxInt16(a int16, b int16) int16

func MaxInt32 added in v0.0.5 

func MaxInt32(a int32, b int32) int32

func MaxInt64 added in v0.0.5 

func MaxInt64(a int64, b int64) int64

func MaxInt8 added in v0.0.5 

func MaxInt8(a int8, b int8) int8

func MaxUint added in v0.0.5 

func MaxUint(a uint, b uint) uint

func MaxUint16 added in v0.0.5 

func MaxUint16(a uint16, b uint16) uint16

func MaxUint32 added in v0.0.5 

func MaxUint32(a uint32, b uint32) uint32

func MaxUint64 added in v0.0.5 

func MaxUint64(a uint64, b uint64) uint64

func MaxUint8 added in v0.0.5 

func MaxUint8(a uint8, b uint8) uint8

func MinInt added in v0.0.5 

func MinInt(a int, b int) int

func MinInt16 added in v0.0.5 

func MinInt16(a int16, b int16) int16

func MinInt32 added in v0.0.5 

func MinInt32(a int32, b int32) int32

func MinInt64 added in v0.0.5 

func MinInt64(a int64, b int64) int64

func MinInt8 added in v0.0.5 

func MinInt8(a int8, b int8) int8

func MinUint added in v0.0.5 

func MinUint(a uint, b uint) uint

func MinUint16 added in v0.0.5 

func MinUint16(a uint16, b uint16) uint16

func MinUint32 added in v0.0.5 

func MinUint32(a uint32, b uint32) uint32

func MinUint64 added in v0.0.5 

func MinUint64(a uint64, b uint64) uint64

func MinUint8 added in v0.0.5 

func MinUint8(a uint8, b uint8) uint8

func ParseInt added in v0.0.8 

func ParseInt(s string) (int, error)

func ParseInt16 added in v0.0.8 

func ParseInt16(s string) (int16, error)

func ParseInt32 added in v0.0.8 

func ParseInt32(s string) (int32, error)

func ParseInt64 added in v0.0.8 

func ParseInt64(s string) (int64, error)

func ParseInt8 added in v0.0.8 

func ParseInt8(s string) (int8, error)

func ParseUint added in v0.0.8 

func ParseUint(s string) (uint, error)

func ParseUint16 added in v0.0.8 

func ParseUint16(s string) (uint16, error)

func ParseUint32 added in v0.0.8 

func ParseUint32(s string) (uint32, error)

func ParseUint64 added in v0.0.8 

func ParseUint64(s string) (uint64, error)

func ParseUint8 added in v0.0.8 

func ParseUint8(s string) (uint8, error)

func PowInt 

func PowInt(x int, y int) int

PowInt is int type of math.Pow function.

func RandInt added in v0.1.1 

func RandInt(min, max int) int

RandInt return random int between [min max]

func RandInt64 added in v0.1.1 

func RandInt64(min, max int64) int64

Rand returns a pseudo-random integer between min and max based on unix-nano time seed !! for random numbers suitable for security-sensitive work, use the crypto/rand package instead

func WGS84toBD09 added in v0.0.8 

func WGS84toBD09(lon, lat float64) (float64, float64)

WGS84toBD09 WGS84坐标系->百度坐标系

func WGS84toGCJ02 added in v0.0.8 

func WGS84toGCJ02(lon, lat float64) (float64, float64)

WGS84toGCJ02 WGS84坐标系->火星坐标系

Types

type FAL 

type FAL struct {
	Nume int64 //numerator 分子
	Deno int64 //denominator 分母 (一定不为0)
}

FAL 分数

func Model 

func Model(nd ...int64) *FAL

Model Create a score (molecular, denominator) with a denominator default of 1 创建一个分数(分子，分母)，分母默认为1:

func (*FAL) Add 

func (s *FAL) Add(f *FAL) *FAL

Add 分数加法

func (*FAL) Div 

func (s *FAL) Div(f *FAL) *FAL

Div 乘法

func (*FAL) Mul 

func (s *FAL) Mul(f *FAL) *FAL

Mul 乘法

func (*FAL) Sub 

func (s *FAL) Sub(f *FAL) *FAL

Sub 分数减法

func (*FAL) Verdict 

func (s *FAL) Verdict() float64

Verdict 计算结果

Source Files

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