Quadratic Constraints and/or objective

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#444 opened on Apr 17, 2025 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 35/100

Issue type: Feature
Clarity: Mostly clear
Activity status: Stale
Tech stack: python
Domain: backend

Research direction

Start by reviewing the linopy documentation for QuadraticExpression and the current constraint-building API. Determine how quadratic constraints and objectives are expected to be represented, then define the supported behavior and validation needed for a complete implementation; the issue names no files or tests.

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Description

enhancement model formulation

Non linear constraints can greatly improve the capabilities of a MILP-Model --> MIQP.
The ability to use these kinds of constraints can be found in the linopy docs, but I only see the option to form a QuadraticExpression. But these cannot be used to from proper constraints and therefore constraint a variable.
This seems rather useless to me. Or am I overlooking something obvious?

Dominant language: Python
Stars: 257
Forks: 87
Avg merge: 1d 15h
Merged PRs (30d): 32

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