How can we truncate float64 type to a particular precision?

Question

package main

import (
    \"fmt\"
    \"strconv\"
    )

func main() {
    k := 10/3.0
    i := fmt.Sprintf(\"%.2f\", k)
    f,_ := strconv.ParseFloat(i, 2)
    fmt.Pri         


        

Answer 1

func FloatPrecision(num float64, precision int) float64 {
    p := math.Pow10(precision)
    value := float64(int(num*p)) / p
    return value
}