Initial data commit

Task/Vector-products/Go/vector-products.go

@@ -0,0 +1,36 @@
+package main
+
+import "fmt"
+
+type vector struct {
+    x, y, z float64
+}
+
+var (
+    a = vector{3, 4, 5}
+    b = vector{4, 3, 5}
+    c = vector{-5, -12, -13}
+)
+
+func dot(a, b vector) float64 {
+    return a.x*b.x + a.y*b.y + a.z*b.z
+}
+
+func cross(a, b vector) vector {
+    return vector{a.y*b.z - a.z*b.y, a.z*b.x - a.x*b.z, a.x*b.y - a.y*b.x}
+}
+
+func s3(a, b, c vector) float64 {
+    return dot(a, cross(b, c))
+}
+
+func v3(a, b, c vector) vector {
+    return cross(a, cross(b, c))
+}
+
+func main() {
+    fmt.Println(dot(a, b))
+    fmt.Println(cross(a, b))
+    fmt.Println(s3(a, b, c))
+    fmt.Println(v3(a, b, c))
+}