但它只适用于方阵. (Visual Studio 2013没有错误.)
如果你帮我编辑这段代码以便繁殖各种矩阵,我会很高兴的.
int a,b,c,d; int Mat1[10][10]; int Mat2[10][10]; int Mat3[10][10]; Back1: cout << endl << "Enter the number of rows in Matrix 1 : "; cin >> a; cout << endl << "Enter the number of columns in Matrix 1 : "; cin >> b; cout << endl << "Enter the number of rows in Matrix 2 : "; cin >> c; cout << endl << "Enter the number of column in Matrix 2 : "; cin >> d; if (b != c) { cout << endl << "******************************************" << "\nThis type of Matrix can't be multiplIEd . " << endl; goto Back1; } for (int i = 0; i < a; i++) { for (int j = 0; j < b; j++) { cout << endl << "(MAT 1 ) \n\nEnter the Element of row " << i + 1 << " column " << j + 1 << " : "; cin >> Mat1[i][j]; } } for (int i = 0; i < c; i++) { for (int j = 0; j < d; j++) { cout << endl << "(MAT 2 ) \n\nEnter the Element of row " << i + 1 << " column " << j + 1 << " : "; cin >> Mat2[i][j]; } } for (int i = 0; i < a; i++) { for (int j = 0; j < d; j++) { Mat3[i][j] = Mat1[i][j] * Mat1[i][j]; } } for (int i = 0; i < a; i++) { for (int j = 0; j < d; j++) { cout << setw(4) << Mat3[i][j] << setw(4); } cout << endl; }}解决方法 你的矩阵乘法代码是错误的.代替:
for (int i = 0; i < a; i++){ for (int j = 0; j < d; j++) { Mat3[i][j] = Mat1[i][j] * Mat1[i][j]; }}
你需要:
for (int i = 0; i < a; i++){ for (int j = 0; j < d; j++) { Mat3[i][j] = 0; for (int k = 0; k < c; k++) { Mat3[i][j] += Mat1[i][k] * Mat2[k][j]; } }}总结
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