optidef – Environments for writing optimization problems

This small library provides a standard set of environments for writing optimization problems.

It automatically aligns the problems in three points with an optional fourth:

• Beginning of the words “minimize/argmin” and “subject to”
• The objective function and the longest left hand side of the constraints.
• The $= | > | <$ signs of the constraints.
• Optionally, the user can add manually a double align character && to align some common constraints feature. A clear example could be the constraints names, e.g. (boundary constraint) alignment with (dynamic constraint).

Furthermore, it provides an easy interface to define optimization problem for three different reference situations:

• Where no equation is referenced/numbered.
• Where the problem is referenced with a single number.
• Where each equation has an individual reference.

Finally, it also allows a definition of any optimization problem without a limitless number of constraints.

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