GEO Source Code

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Adil Ibrahim
BCS SZIC University Of Peshawar

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?

Hello!

Please post an example of your matrix input that you want to read from a file.

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