Precision

---

examples/precision/precision.go

package main

import (
    "fmt"
    "strconv"
)

func main() {
    aStr := "2.1"
    bStr := "7.3"
    a, _ := strconv.ParseFloat(aStr, 64)
    b, _ := strconv.ParseFloat(bStr, 64)
    fmt.Println(a + b)
    fmt.Println(a - b)
}

9.4
-5.199999999999999