Question

How to calculate the dot product of two arrays in Go

Answer 1

package main

import "fmt"

func calculateDotProduct(arr1, arr2 []int) int {
	product := 0
	size := len(arr1)

	for i := 0; i < size; i++ {
		product += arr1[i] * arr2[i]
	}

	return product
}

func main() {
	arr1 := []int{1, 4, 8, 9, 6}
	arr2 := []int{0, 7, 1, 3, 40}

	fmt.Printf("Dot product = %d", calculateDotProduct(arr1, arr2))
}


/*
run:

Dot product = 303

*/

 

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