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March 29th, 2010, 03:08 PM
This is the almost final program, thanks for your help!
http://rapidshare.com/files/369676516/matrix.zip
@Lindley, thanks for the information on return values and copy constructors!
as for the...

March 29th, 2010, 01:56 PM
In which case would it get called?

March 29th, 2010, 01:32 PM
Ah ok I thought you ment to replace it. Anyway, I figured that it works like that:
float& Matrix::operator()(const int nRow, const int nCol) const
{
return m_pfMatrix[nRow * m_nColCount...

March 29th, 2010, 12:37 PM
I thought of that, but then I would not be able to modify the matrix using
Matrix(nRow, nCol) = X;
is there another way of doing this?

March 29th, 2010, 09:09 AM
Thanks for your information.
Initially, I had them as const Matrix&, however, as I am using the overloaded () operator inside the constructor and assignment operator, I am not allowed to use...

March 29th, 2010, 07:58 AM
thanks for the very constructive input!
as for now, I got it working as far as I can see it. Now my constructors are the same, I just fixed the allocation that was not initialized to 0 and added...

March 29th, 2010, 04:23 AM
no, I did not implent the copy constructor.
So when doing
return cResMatrix;
return does copy the matrix and then returns the copy because the original matrix goes out of scope, right? and when...

March 29th, 2010, 02:08 AM
thank you for your answer!
the problem is, if I use my Matrix constructor to construct a matrix, it will call the destructor before returning the matrix value. thus crashing the programm.
the...

March 28th, 2010, 05:38 PM
thanks, I got that part.
now I am a little further, still I am getting not total correct results
Matrix operator*(const Matrix &cObj1, const Matrix &cObj2)
{
float *pfaResMat = new...

March 28th, 2010, 01:48 PM
thanks again.
You were of course right with the size, I always tested with 2x2 matrices.
as for
could you maybe explain the text in bold a little bit further? thanks
yours sincerely,

March 28th, 2010, 08:38 AM
the program would have to do:
n=a*y+b*z and m=c*y+d*z
i figured that it has to be somewhat like this:
for(int nRo = 0; nRow < resmatrix.m_nRowCount; nRow++)
{
for(int nCol = 0; nCol <...

March 28th, 2010, 08:33 AM
thanks for your quick response!
why do you think that the size is wrong? because it works well for me (doing matrix additions etc.).
i know how to multiply matrices, but heres the problem...

March 28th, 2010, 06:30 AM
hello,
im currently writing a class which stores matrices and performs arithmic operations with them.
the matrices are stored as follows:
float *pfaMatrix = new float[nColumnCount +...

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