Lineax: unified linear solves and linear least-squares in JAX and Equinox

Abstract

We introduce Lineax, a library bringing linear solves and linear least-squares to the JAX+Equinox scientific computing ecosystem. Lineax uses general linear operators, and unifies linear solves and least-squares into a single, autodifferentiable API. Solvers and operators are user-extensible, without requiring the user to implement any custom derivative rules to get differentiability. Lineax is available at https://github.com/google/lineax.

7 pages, 1 figure, NeurIPS 2023 AI for Science workshop

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