https://play.golang.org/p/87bDubJxjHO
I'd like to truncate a float64 to just 2 decimal places (in base 10), but
math.Trunc is not helping me here... ideally I put 0.29 in and I get 0.29
out.
Suggestions? Playground examples appreciated.
package main
import (
"fmt"
"math"
)
// truncate off everything after the last two decimals, no rounding.
func decimal2(x float64) float64 {
return math.Trunc(x*100) / 100
}
func main() {
x := 0.29
y := decimal2(x)
fmt.Printf("x=%v -> y = %v", x, y) // prints x=0.29 -> y=0.28
}
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