Multiplication Of Two Matrix...

Write a program for matrix multiplication in c++ And Algorithm 

Alogrithm:

Multiplication of two matrixes:

Rule: Multiplication of two matrixes is only possible if first matrix has size m X n and other matrix has size n x r. Where m, n and r are any positive integer.

Multiplication of two matrixes is defined as

Where 1 ≤ i ≤ m and 1 ≤ j ≤ n

For example:

Suppose two matrixes A and B of size of 2 x 2 and 2 x 3 respectively:

---

#include<iostream.h>

#include<conio.h>

#include<stdio.h>

#include<iomanip.h>    // for setw()

int main()

{

int m1[10][10],m2[10][10],add[10][10],i,j,r1,c1,c2,r2,k;

clrscr();

cout<<"Enter how row na column you wants in matrix 1:";

cin>>r1>>c1;

cout<<"Enter how row na column you wants in matrix 2:";

cin>>r2>>c2;

if(r1!=c1)

cout<<"Enter 1st matrix's row and 2nd matrix's column same:";

cout<<"Enter for first matrix:\n";

for(i=0;i<r1;i++)

{

for(j=0;j<c1;j++)

{

cin>>m1[i][j];

}

}

cout<<"Enter for sencond matrix:\n";

for(i=0;i<r2;i++)

{

for(j=0;j<c2;j++)

{

cin>>m2[i][j];

}

}

cout<<"The multiplication two of matrix is:\n";

for(i=0;i<r1;i++)

{

for(j=0;j<c1;j++)

{

cout<<endl;

add[i][j]=0;

for(k=0;k<r1;k++)

{

add[i][j]+=m1[i][k]*m2[k][j];

}

}

cout<<setw(10)<<add[i][j];

}

/* cout<<"The addition of matrix is:\n";

for(i=0;i<c1;i++)

{

cout<<endl;

for(j=0;j<r1;j++)

{

cout<<setw(5)<<add[i][j];

}

}*/

getch();

return 0;

}

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