Matrices

This is a discussion on Matrices within the C++ Programming forums, part of the General Programming Boards category; /code/ double A[5][5]; int columnsA = 3; int rowsA = 3; void setmatrix(double MA[5][5]) { int i; int j; printf("please ...

  1. #1
    Registered User
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    Mar 2008
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    8

    Matrices

    /code/
    double A[5][5];
    int columnsA = 3;
    int rowsA = 3;

    void setmatrix(double MA[5][5])
    {
    int i;
    int j;

    printf("please enter matrix %f: \n");
    for(i=o; i<=row; i++)
    {
    for(j=0; j<=column; j++)
    {
    printf("Row %d, Column %d: ", i+1, j+1);
    scanf("%lf ", &A[i][j]);
    }
    }
    /code/

    this is before int main(void)

    I want to display matrix A [1,0,0]
    [0,1,0]
    [0,0,1]
    this is the default matrix (displaymatrix())

    how would I add and mulitply matrix A and a MatrixB (entered by user)

  2. #2
    and the Hat of Guessing tabstop's Avatar
    Join Date
    Nov 2007
    Posts
    14,185
    This seems familiar in some sort of Twilight Zone way. But anyway:
    http://en.wikipedia.org/wiki/Matrix_...lying_matrices

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