Data commit

Task/Arithmetic-geometric-mean/Go/arithmetic-geometric-mean.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+    "fmt"
+    "math"
+)
+
+const ε = 1e-14
+
+func agm(a, g float64) float64 {
+    for math.Abs(a-g) > math.Abs(a)*ε {
+        a, g = (a+g)*.5, math.Sqrt(a*g)
+    }
+    return a
+}
+
+func main() {
+    fmt.Println(agm(1, 1/math.Sqrt2))
+}