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With regards
Adil Ibrahim
BCS SZIC University Of Peshawar
Serving to help others
4 posts • Page 1 of 1
Serving to help others
by adilibrahim121 on March 18th, 2008, 4:01 pm
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adilibrahim121 - Posts: 13
- Joined: March 14th, 2008, 4:15 pm
- Location: Peshawar
Re: Serving to help others
by anands1 on March 28th, 2008, 4:49 pm
I want to input a matrix from a text file, so I can perform a simplex, primal, dual, 2-phase algorithm on it (users choice). Output the matrix every time it performs a pivot until the matrix is optimal.
Can you help me?
Can you help me?
- anands1
- Posts: 2
- Joined: March 28th, 2008, 4:45 pm
Re: Serving to help others
by MT Shahzad on March 29th, 2008, 3:59 pm
Hello!
Please post an example of your matrix input that you want to read from a file.
Please post an example of your matrix input that you want to read from a file.
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MT Shahzad - Site Admin
- Posts: 300
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- Location: Muridke, Pakistan
Re: Serving to help others
by anands1 on April 1st, 2008, 3:18 pm
For example: the following LP problem
maximize
-x1 - 4x2 - 3x3 - 3x4
subject to.
x1 + x2 - x4 >=-1
x1 - x2 - x3 - x4 <= 2
x1 + x2 - x4 <=-1
-x1+ x2 - x3 +x4 <=-2
would be input as follows:
-1 -4 -3 -3
1 1 0 -1 >= -1
1 -1 -1 -1 <= 2
1 1 0 -1 <= -1
-1 1 -1 1 <= -2
maximize
-x1 - 4x2 - 3x3 - 3x4
subject to.
x1 + x2 - x4 >=-1
x1 - x2 - x3 - x4 <= 2
x1 + x2 - x4 <=-1
-x1+ x2 - x3 +x4 <=-2
would be input as follows:
-1 -4 -3 -3
1 1 0 -1 >= -1
1 -1 -1 -1 <= 2
1 1 0 -1 <= -1
-1 1 -1 1 <= -2
- anands1
- Posts: 2
- Joined: March 28th, 2008, 4:45 pm
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