# argmin-math 0.2.1 released

Posted September 9, 2022 by Stefan Kroboth ‐ 2 min read

argmin offers a range of numerical optimization methods in Rust.

The previous release added (optional) L1-regularization to L-BFGS which increased the trait bounds on the acceptable types. Unfortunately these traits where only partially implemented for the nalgebra backend, therefore L-BFGS could not be used with nalgebra types anymore. The 0.2.1 release of argmin-math fixes this and adds an L-BFGS example for nalgebra types to the examples/ directory.