矩阵乘法+快速幂_C ++矩阵乘法程序
矩阵乘法+快速幂
Here you will get C++ matrix multiplication program.
在这里，您将获得C ++矩阵乘法程序。
What we are doing in this program.
我们在该程序中正在做什么。
Read number of rows and columns for two matrix.
读取两个矩阵的行数和列数。
Then check if matrix multiplication is possible or not.
然后检查是否可以进行矩阵乘法。
If not possible then show a message to user otherwise multiply them. Finally display the result.
如果不可能，则向用户显示一条消息，否则将其乘以。 最后显示结果。
C ++矩阵乘法程序 (C++ Matrix Multiplication Program)
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#include<iostream>
using namespace std;
int main()
{
int a[5][5],b[5][5],c[5][5],m,n,p,q,i,j,k;
cout<<"Enter rows and columns of first matrix:";
cin>>m>>n;
cout<<"Enter rows and columns of second matrix:";
cin>>p>>q;
if(n==p)
{
cout<<"\nEnter first matrix:\n";
for(i=0;i<m;++i)
for(j=0;j<n;++j)
cin>>a[i][j];
cout<<"\nEnter second matrix:\n";
for(i=0;i<p;++i)
for(j=0;j<q;++j)
cin>>b[i][j];
cout<<"\nThe new matrix is:\n";
for(i=0;i<m;++i)
{
for(j=0;j<q;++j)
{
c[i][j]=0;
for(k=0;k<n;++k)
c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
cout<<c[i][j]<<" ";
}
cout<<"\n";
}
}
else
cout<<"\nSorry!!!! Matrix multiplication can't be done";
return 0;
}
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#include<iostream>
using namespace std ;
int main ( )
{
int a [ 5 ] [ 5 ] , b [ 5 ] [ 5 ] , c [ 5 ] [ 5 ] , m , n , p , q , i , j , k ;
cout << "Enter rows and columns of first matrix:" ;
cin >> m >> n ;
cout << "Enter rows and columns of second matrix:" ;
cin >> p >> q ;
if ( n == p )
{
cout << "\nEnter first matrix:\n" ;
for ( i = 0 ; i < m ; ++ i )
for ( j = 0 ; j < n ; ++ j )
cin >> a [ i ] [ j ] ;
cout << "\nEnter second matrix:\n" ;
for ( i = 0 ; i < p ; ++ i )
for ( j = 0 ; j < q ; ++ j )
cin >> b [ i ] [ j ] ;
cout << "\nThe new matrix is:\n" ;
for ( i = 0 ; i < m ; ++ i )
{
for ( j = 0 ; j < q ; ++ j )
{
c [ i ] [ j ] = 0 ;
for ( k = 0 ; k < n ; ++ k )
c [ i ] [ j ] = c [ i ] [ j ] + ( a [ i ] [ k ] * b [ k ] [ j ] ) ;
cout << c [ i ] [ j ] << " " ;
}
cout << "\n" ;
}
}
else
cout << "\nSorry!!!! Matrix multiplication can't be done" ;
return 0 ;
}
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Output
输出量
翻译自: https://www.thecrazyprogrammer.com/2012/09/c-program-to-multiply-two-matrices.html
矩阵乘法+快速幂