how to do matrix multiplication in c

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PENGUIN OVERLORD answered on April 15, 2020 Popularity 10/10 Helpfulness 5/10

answer how to do matrix multiplication in c

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how to do matrix multiplication in c

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double[][] c = new double[N][N];
for (int i = 0; i < N; i++)
{
 for (int j = 0; j < N; j++)
 	{
 for (int k = 0; k < N; k++)
 		{
		 c[i][j] += a[i][k] * b[k][j];
 		}
 	}
}

Popularity 10/10 Helpfulness 5/10 Language c

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Tags: c

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Contributed on Apr 15 2020

PENGUIN OVERLORD

0 Answers Avg Quality 2/10

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matrix multiplication in c

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#include <stdio.h>

int main()
{   int a_rows,a_cols,b_rows,b_cols,i,j,k,sum=0;

    printf("Enter the rows and columns for first matrix (row)(col)  :\n");
    scanf("%d %d",&a_rows,&a_cols);

    printf("Enter the rows and columns for second matrix (row)(col) :\n");
    scanf("%d %d",&b_rows,&b_cols);
    int a[a_rows][a_cols], b[b_rows][b_cols],matrix[10][10];

    if(a_cols != b_rows){
        printf("Sorry! We can't multiply the matrix because the column number of matrix 1 and the row number of matrix 2 aren't same !!\n");
        
    }else{
        printf("Enter elements for first matrix  :\n");
       for(i = 0; i < a_rows; i++){
           for(j = 0; j< a_cols; j++){
               scanf("%d",&a[i][j]);
           }
       }

    printf("Enter elements for second matrix  :\n");

       for(i = 0; i < b_rows; i++){
           for(j = 0; j < b_cols; j++){
               scanf("%d",&b[i][j]);
           }
       }

       printf("multiplying matrix....\n");
       //multiplying matrix
       for(i=0; i < a_rows; i++){
           for(j = 0; j < b_cols; j++){
               for(k = 0; k < a_cols; k++){
                   sum+=a[i][k] * b[k][j];
               }
               matrix[i][j] = sum;
               sum=0;
               
           }
           printf("\n");
       }

       printf("first matrix  :\n");
       for(i = 0; i < a_rows; i++){
           for(j = 0; j< a_cols; j++){
               printf("%d ",a[i][j]);
           }
           printf("\n");
       }


        printf("\n\n");

       printf("second matrix  :\n");
       for(i = 0; i < b_rows; i++){
           for(j = 0; j< b_cols; j++){
               printf("%d ",b[i][j]);
           }
           printf("\n");
       }


       printf("Multiplied matrix  :\n");
       for(i = 0; i < a_rows; i++){
           for(j = 0; j< b_cols; j++){
               printf("%d ",matrix[i][j]);
           }
           printf("\n");
       }
    }

     

    return 0;
}

Popularity 10/10 Helpfulness 5/10 Language c

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Tags: c

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Contributed on Jul 19 2021

rifatibn

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2d array multiplication c

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Popularity 1/10 Helpfulness 1/10 Language c

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Contributed on Sep 28 2021

Lazy Lizard

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multiplication of matrix in c

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enter the number of row=3
enter the number of column=3
enter the first matrix element=
1 1 1
8 8 8
3 3 3
enter the second matrix element=
1 1 1
2 2 2
3 3 3
multiply of the matrix=
6 6 6
12 12 12
18 18 18

Popularity 10/10 Helpfulness 1/10 Language c

Source: www.javatpoint.com

Tags: c matrix ma

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Contributed on Dec 30 2021

Drab Dingo

0 Answers Avg Quality 2/10

matrix multiplication in c

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-1

Matrix Multification

Popularity 9/10 Helpfulness 1/10 Language whatever

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Tags: c whatever

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Contributed on Mar 16 2022

Said HR

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how to do matrix multiplication in c

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