complex demo

cl/_testlibgo/complex/in.go

@@ -4,9 +4,16 @@ import (
 	"math/cmplx"
 )
 
+func f(c, z complex128) {
+	println("abs(3+4i):", cmplx.Abs(c))
+	println("real(3+4i):", real(z))
+	println("imag(3+4i):", imag(z))
+}
+
 func main() {
 	re := 3.0
 	im := 4.0
+	z := 3 + 4i
 	c := complex(re, im)
-	println("abs(3+4i):", cmplx.Abs(c))
+	f(c, z)
 }