more index work

013-functions/functions.go

@@ -0,0 +1,20 @@
+// ## Functions
+
+package main
+
+import "fmt"
+
+func avg(vals []float64) float64 {
+	total := 0.0
+	for _, val := range vals {
+		total += val
+	}
+	return total / float64(len(vals))
+}
+
+func main() {
+	input := []float64{98,93,77,82,83}
+	fmt.Println(input)
+	output := avg(input)
+	fmt.Println(output)
+}