g++ Matrix.cpp -o MatrixMatrix 1:
1 2 3
4 5 6
Matrix 2:
7 8
9 10
11 12
Result of multiplication:
33 36
66 72 After Take a look of code I suspect this Line:
43 result.data[i][j] = data[i][k] * other.data[k][j];
so lets start c++ debugger
g++ -g Matrix.cpp -o Matrix
gdb Matrix
b 43
r
1- std::vector of length 2, capacity 2 = {std::vector of length 2, capacity 2 = {0, 0},
std::vector of length 2, capacity 2 = {0, 0}}
2- std::vector of length 2, capacity 2 = {std::vector of length 2, capacity 2 = {7, 0},
std::vector of length 2, capacity 2 = {0, 0}}
3- $4 = std::vector of length 2, capacity 2 = {std::vector of length 2, capacity 2 = {18, 0},
std::vector of length 2, capacity 2 = {0, 0}}
*From tracing we notice results.data[0][0] change from 7 (1 x 7) to 18 (2x9) instead of adding cumulative
43 result.data[i][j] += data[i][k] * other.data[k][j]; //adding + solve itg++ Matrix.cpp -o Matrix
./Matrix
//output
Matrix 1:
1 2 3
4 5 6
Matrix 2:
7 8
9 10
11 12
Result of multiplication:
58 64
139 154 
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