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float64.go
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float64.go
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package math
import "github.com/WindomZ/decimal"
func FloatRound(value float64, places int) float64 {
f, _ := decimal.NewFromFloat(value).Round(int32(places)).Float64()
return f
}
func FloatRoundToInt(value float64, places int) int64 {
return decimal.NewFromFloat(value).Mul(decimal.New(1, int32(places))).Round(0).IntPart()
}
func FloatSum(x, y float64) float64 {
f, _ := decimal.NewFromFloat(x).Add(decimal.NewFromFloat(y)).Float64()
return f
}
func FloatSumRound(x, y float64, places int, zs ...float64) float64 {
d := decimal.NewFromFloat(x).Add(decimal.NewFromFloat(y))
if zs != nil && len(zs) != 0 {
for _, z := range zs {
d = d.Add(decimal.NewFromFloat(z))
}
}
f, _ := d.Round(int32(places)).Float64()
return f
}
func FloatSub(x, y float64) float64 {
f, _ := decimal.NewFromFloat(x).Sub(decimal.NewFromFloat(y)).Float64()
return f
}
func FloatSubRound(x, y float64, places int, zs ...float64) float64 {
d := decimal.NewFromFloat(x).Sub(decimal.NewFromFloat(y))
if zs != nil && len(zs) != 0 {
for _, z := range zs {
d = d.Sub(decimal.NewFromFloat(z))
}
}
f, _ := d.Round(int32(places)).Float64()
return f
}
func FloatMul(x, y float64) float64 {
f, _ := decimal.NewFromFloat(x).Mul(decimal.NewFromFloat(y)).Float64()
return f
}
func FloatMulRound(x, y float64, places int, zs ...float64) float64 {
d := decimal.NewFromFloat(x).Mul(decimal.NewFromFloat(y))
if zs != nil && len(zs) != 0 {
for _, z := range zs {
d = d.Mul(decimal.NewFromFloat(z))
}
}
f, _ := d.Round(int32(places)).Float64()
return f
}
func FloatDiv(x, y float64) float64 {
f, _ := decimal.NewFromFloat(x).Div(decimal.NewFromFloat(y)).Float64()
return f
}
func FloatDivRound(x, y float64, places int, zs ...float64) float64 {
d := decimal.NewFromFloat(x).Div(decimal.NewFromFloat(y))
if zs != nil && len(zs) != 0 {
for _, z := range zs {
d = d.Div(decimal.NewFromFloat(z))
}
}
f, _ := d.Round(int32(places)).Float64()
return f
}