math: add function examples.
The function Modf lacks corresponding examples.
Change-Id: Id93423500e87d35b0b6870882be1698b304797ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/231097
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
diff --git a/src/math/example_test.go b/src/math/example_test.go
index ce9c383..9fc1967 100644
--- a/src/math/example_test.go
+++ b/src/math/example_test.go
@@ -227,3 +227,14 @@
// 2.00
// 3.00
}
+
+func ExampleModf() {
+ int, frac := math.Modf(3.14)
+ fmt.Printf("%.2f, %.2f\n", int, frac)
+
+ int, frac = math.Modf(-2.71)
+ fmt.Printf("%.2f, %.2f\n", int, frac)
+ // Output:
+ // 3.00, 0.14
+ // -2.00, -0.71
+}
