12 lines
183 B
Go
12 lines
183 B
Go
// 章节 1.2
|
|
// $GOPATH/src/mymath/sqrt.go
|
|
package mymath
|
|
|
|
func Sqrt(x float64) float64 {
|
|
z := 0.0
|
|
for i := 0; i < 1000; i++ {
|
|
z -= (z*z - x) / (2 * x)
|
|
}
|
|
return z
|
|
}
|