Skip to main content

Matrix Multiplication in c language

first matrix:     second matrix:    answer matrix is:

2   3                    3     4                    30         29

3   2                    8     7                    27         26


below is code in c language:

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <ctype.h>
#include <stdlib.h>
int main()
{
    int row1, row2, col1, col2, sum;
    printf("Enter the row and column for matrix 1\n");
    scanf("%d %d", &row1, &col1);
    printf("Enter the row and column for matrix 2\n");
    scanf("%d %d", &row2, &col2);
    int mat1[row1][col1];
    int mat2[row2][col2];
    int ansmat[row1][col2];
    printf("Enter the first matrix\n");
    for (int i = 0; i < row1; i++)
    {
        for (int j = 0; j < col1; j++)
        {
            scanf("%d", &mat1[i][j]);
        }
    }
    printf("Enter the second matrix\n");
    for (int i = 0; i < row2; i++)
    {
        for (int j = 0; j < col2; j++)
        {
            scanf("%d", &mat2[i][j]);
        }
    }

    if (col1 == row2)
    {

        for (int i = 0; i < row1; i++)
        {
            for (int j = 0; j < col2; j++)
            {
                sum = 0;
                for (int k = 0; k < row2; k++)
                {
                    sum = sum + (mat1[i][k] * mat2[k][j]);
                }
                ansmat[i][j] = sum;
            }
        }
        printf("The answer matrix is below\n");
        for (int i = 0; i < row1; i++)
        {
            for (int j = 0; j < col2; j++)
            {
                printf("%d\t", ansmat[i][j]);
            }
            printf("\n");
        }
    }
    else
    {
        printf("Multiplication is not possible\n");
    }

    return 0;
}
Labels:

Comments

Post a Comment

Popular posts from this blog

C Program to Calculate Difference Between Two Time Periods

  Calculate Difference Between Two Time Periods # include <stdio.h> struct TIME { int seconds; int minutes; int hours; }; void differenceBetweenTimePeriod (struct TIME t1, struct TIME t2, struct TIME *diff) ; int main () { struct TIME startTime , stopTime , diff ; printf ( "Enter the start time. \n" ); printf ( "Enter hours, minutes and seconds: " ); scanf ( "%d %d %d" , &startTime.hours, &startTime.minutes, &startTime.seconds); printf ( "Enter the stop time. \n" ); printf ( "Enter hours, minutes and seconds: " ); scanf ( "%d %d %d" , &stopTime.hours, &stopTime.minutes, &stopTime.seconds); // Difference between start and stop time differenceBetweenTimePeriod(startTime, stopTime, &diff); printf ( "\nTime Difference: %d:%d:%d - ...
Post a Comment
Read more

C Program to Display its own Source Code as Output

  C program to display its own source code # include <stdio.h> int main () { FILE *fp; int c;     // open the current input file fp = fopen(__FILE__, "r" ); do { c = getc(fp); // read character putchar (c); // display character } while (c != EOF); // loop until the end of file is reached   fclose(fp); return 0 ; }
1 comment
Read more

HTML TABLE CODE

<! DOCTYPE   html > < html   lang = "en" > < head >     < meta   charset = "UTF-8" >     < meta   http-equiv = "X-UA-Compatible"   content = "IE=edge" >     < meta   name = "viewport"   content = "width=device-width, initial-scale=1.0" >     < title >this is form</ title >     < script >          function   checkdetail () {              var  x  =  document.frm.n.value;              if  (x  ==   null   ||  x  ==   " "   ||  x.length  >   15   ||  x.length  <   3 ) {         ...
Post a Comment
Read more