| package main | |
| import ( | |
| "fmt" | |
| "math" | |
| ) | |
| func pow(x, n, lim float64) float64 { | |
| if v := math.Pow(x, n); v < lim { | |
| return v | |
| } else { | |
| fmt.Printf("%g >= %g\n", v, lim) | |
| } | |
| // can't use v here, though | |
| return lim | |
| } | |
| func main() { | |
| fmt.Println( | |
| pow(3, 2, 10), | |
| pow(3, 3, 20), | |
| ) | |
| } |