add: arrays

etc/stratch/main.go

@@ -0,0 +1,42 @@
+package main
+
+import "fmt"
+
+func main() {
+	students := [...][3]float64{
+		{5, 6, 1},
+		{9, 8, 4},
+	}
+
+	var sum float64
+	for _, grades := range students {
+		for _, grade := range grades {
+			sum += grade
+		}
+	}
+
+	const N = float64(len(students) * len(students[0]))
+	fmt.Printf("Avg Grade: %g\n", sum/N)
+
+	// students := [2][3]float64{
+	// 	[3]float64{5, 6, 1},
+	// 	[3]float64{9, 8, 4},
+	// }
+
+	// var sum float64
+	// sum += students[0][0] + students[0][1] + students[0][2]
+	// sum += students[1][0] + students[1][1] + students[1][2]
+
+	// const N = float64(len(students) * len(students[0]))
+	// fmt.Printf("Avg Grade: %g\n", sum/N)
+
+	// student1 := [3]float64{5, 6, 1}
+	// student2 := [3]float64{9, 8, 4}
+
+	// var sum float64
+	// sum += student1[0] + student1[1] + student1[2]
+	// sum += student2[0] + student2[1] + student2[2]
+
+	// const N = float64(len(student1) * 2)
+	// fmt.Printf("Avg Grade: %g\n", sum/N)
+}