Question

Write a program that reads two integer arrays each of size 10 then find and print the inner product of the arrays.  Inner product can be performed by multiplying each element of one vector by the corresponding element in the second vector that has the same index, and summing all the products. For example:

A[5]= {1,2,3,4,5}

B[5]= {2,0,3,1,5}

Inner product = 40

Answer 1

SOURCE CODE IN C:

#include <stdio.h>

int main()

{

int A[10], B[10]; //declaring arrays

//input array A

printf("Enter elements of first array: ");

for(int i=0; i<10; i++)

scanf("%d", &A[i]);

//input array B

printf("Enter elements of second array: ");

for(int i=0; i<10; i++)

scanf("%d", &B[i]);

//finding inner product of A and B

int innerProduct=0;

for(int i=0; i<10; i++)

innerProduct+=A[i]*B[i];

//output inner product

printf("The inner product is %d.\n", innerProduct);

return 0;

}

OUTPUT:

> clang-7 -pthread -lm -o main main.c } ./main Enter elements of first array: 1 2 3 4 5 6 7 8 9 10 Enter elements of second array: 0 2 3 1 5 2 5 8 4 2 The inner product is 209.

Regards!