# Questions tagged [mathematical-optimization]

Questions on the optimization functions of Mathematica such as FindMinimum/FindMaximum, Minimize/Maximize, NMinimize/NMaximize, etc.

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### Approximate integer factorization

Suppose we would like to compute an approximate prime factorization of a large integer x in the sense that the difference between ...
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### Plot “Findroot” with very complex variables

I ran into an extremely complex "zero problem" and don't know how to solve and plot it. Can anyone help with this, please? [Pi]s and [Pi]r are objective functions, pd, po, qd, qo, and [Phi] (...
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### NMinimize for searching global minimum

I have been trying to find global minimum for this equation for some time now. The equation is quite easy to understand. It is made with sumation of stress equations of points on the border where \$σ_{...
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### How to use parts of expression as variables in Minimize (NMinimize )?

I want to solve some optimization problem involving matrices. A toy example related to the problem looks as follows ...
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### Finding the maximum value from the roots of a solution when there is an ambiguity

I have a variable x = l*Cos[t]*Cos[a] - Sin[t]*Sin[a] and I want to find the maximum value of x with respect to a, as well as access the roots. I have tried ...
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### Nominal variables in LinearModelFit must be specified before continuous variables

I am applying the LinearModelFit to a 90 x 5 matrix, in which the 4th variable is a nominal variable (i.e., x4 is a categorical ...