anonymous
  • anonymous
Matrix Multiplication C++
Computer Science
schrodinger
  • schrodinger
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anonymous
  • anonymous
There seems to be some logical error here, and i am not able to really understand the following part. Code: http://ideone.com/wgZ3J And the part followed by //mult there.
anonymous
  • anonymous
the page you linked shows up empty for me; on Firefox
farmdawgnation
  • farmdawgnation
Ditto to the above comment.

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anonymous
  • anonymous
My bad, fixed it, http://ideone.com/wgZ3J
anonymous
  • anonymous
http://ideone.com/mQNtH lets have a look at before the entire "mult" block...
anonymous
  • anonymous
http://ideone.com/si08f there now it's better. Instead of the cin >> m >> n; I used cin >> m; and the n = m; same for the o and p. Let's uncomment that mult block. http://ideone.com/EYFhR everything seems fine now.
anonymous
  • anonymous
Yes but that would just multiply sqare matrices. I want it for normal multiplication, and want to know exactly what happens (inside) with those three loops.
anonymous
  • anonymous
But thanks for alteast caring about it @agdgdgdgwngo btw, in void print_matrix(int m[10][10], int s) what is int s for?
anonymous
  • anonymous
Ahh I thought you only needed square matrices :-P the s in the print_matrix procedure specifies the size of the square matrix. I've now modified the print_matrix procedure so it works on row and column dimensions. http://ideone.com/ktBnc the first and second loops in main() just fill up the first and second matrices with input from cin the last loop does the dot product of two matrices
anonymous
  • anonymous
Wow! Its on a roll now! Sorry to trouble you so much, one last thing, what is the role of m and o in print_matrix(mult, m, o); if its for size as before, then shouldnt it be m,p? And for "for(int k=0;k
anonymous
  • anonymous
Right; it should be print_matrix(mult, m, p); my bad :-P Right about the for loop as well: that particular one one is computing the matrix product.
anonymous
  • anonymous
Thank you very much!

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