2 Matrices multiply problem

This is a discussion on 2 Matrices multiply problem within the C Programming forums, part of the General Programming Boards category; Hello there, I have a struct of matrix that is defined like this: Code: typedef struct { int rows; int ...

  1. #1
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    2 Matrices multiply problem

    Hello there,
    I have a struct of matrix that is defined like this:
    Code:
      typedef struct {
              int rows;
              int cols;
              int *mat;
           } Matrix;
    And I have 2 pointers to matrices m1 and m2 and I would like to multiply between them.

    Now, given the fact that each matrix is saved in a 1-dimensional array, how can I multiply it properly in the result matrix, m3?
    Any ideas?

    Thanks in advance

  2. #2
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    > Now, given the fact that each matrix is saved in a 1-dimensional array, how can I multiply it properly in the result matrix, m3?
    Well you've got rows and cols members, which I guess you've used before (say in assigning the matrix values to begin with).
    So you should be able to extract any given mat[row][col] value.

    Knowing how to do this, the standard matrix multiply algorithm (see wikipedia or mathworld) should see you home.
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