C program to multiply two matrix | My CS Tutorial

C program to multiply two matrices. Multiplication of two matrixmces in c. Multiplication of matrices in c programming | My CS Tutorial

In this tutorial we will learn  or discuss that how to write a c program code to multiply two matrix. In this program we will use arrays.

This c program code will multiply two matrices and find a new matrix.

In the first user will enter range of rows and columns of both matrices. After it user enter the elements of first matrix then second matrix.

After it compiler check and exicute the condition and logics and print a new matrix in which both matrixes are multiplied.

C PROGRAM CODE

#include<stdio.h>

#include<conio.h>

void main()

{

 int i,j,k,rows_1,col_1,rows_2,col_2,sum=0;

  int a1[100][100],a2[100][100],mul[100][100];

  

 clrscr();

 printf("\n ENTER THE RANGE OF ROWS AND COLUMNS OF FIRST MATRIX:\n ");

 scanf("%d %d",&rows_1,&col_1);

 printf("\n ENTER THE RANGE OF ROWS AND COLUMNS OF SECOND MATRIX:\n ");

 scanf("%d %d",&rows_2,&col_2);

 if(col_1==rows_2)

 {

  //Taking input for 1st matrix

  

 printf("\n ENTER THE NUMBERS OF FIRST MATRIX:\n ");

 for(i=0;i<rows_1;i++)

 {

  for(j=0;j<col_1;j++)

  {

   scanf("%d",&a1[i][j]);

  }

 }

  //Taking input for 2nd matrix

  printf("\n ENTER THE NUMBERS OF SECOND MATRIX:\n ");

 for(i=0;i<rows_2;i++)

 {

  for(j=0;j<col_2;j++)

  {

   scanf("%d",&a2[i][j]);

  }

 }

 //multiplication of matrix

 for(i=0;i<rows_1;i++)

 {

  for(j=0;j<col_2;j++)

  {

   for(k=0;k<rows_2;k++)

   {

    sum+=a1[i][k]*a2[k][j];

   }

   mul[i][j]=sum;

   sum=0;

  }

 }

 printf("\n MULTIPLICATION OF ABOVE MATRICES IS:\n ");

  for(i=0;i<rows_1;i++)

 {

  for(j=0;j<col_2;j++)

  {

   printf("%d\t",mul[i][j]);

  }

  printf("\n ");

 }

 }

 else

 {

  printf("\n NOT POSSIBLE WITH THE GIVEN ROWS AND COLUMNS ELEMENTS....\n ");

 }

getch();

}

OUTPUT:

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Created by-- HARSH CHAUHAN