If you get the error "basis matrix is singular to working precision" in GLPK

For the time being, just one word. Before calling glp_simplex, let's also call glp_scale_prob and glp_std_basis. that's all.

I don't have enough motivation to write a proper article, so for the time being, I stumbled for the last 10 minutes, and Google teacher did not have a good result, so I will write down the self-solved matter.

After doing the pre-calculation endlessly, I am running a program that automatically generates a model and hits GLPK, so now that it has started working safely, I just have to wait. While waiting patiently for the calculation to finish, I saw "Yes Fleet" at once with a smile.

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