Created
November 20, 2016 02:32
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Go loops and functions exercise
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| package main | |
| import ( | |
| "fmt" | |
| "math" | |
| ) | |
| func Sqrt(x float64) float64 { | |
| z := 1.0 | |
| for i := 0;; i++ { | |
| newZ := z - (z*z - x) / (2*x) | |
| if math.Abs(newZ - z) < 0.00000001 { | |
| fmt.Println("%d iterations", i) | |
| fmt.Println("difference:", math.Sqrt(x) - newZ) | |
| return newZ | |
| } | |
| z = newZ | |
| } | |
| } | |
| func main() { | |
| fmt.Println(Sqrt(2)) | |
| } |
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