Test master

Author: ChrisRackauckas

README.md

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 [![ColPrac: Contributor's Guide on Collaborative Practices for Community Packages](https://img.shields.io/badge/ColPrac-Contributor%27s%20Guide-blueviolet)](https://github.com/SciML/ColPrac)
 [![SciML Code Style](https://img.shields.io/static/v1?label=code%20style&message=SciML&color=9558b2&labelColor=389826)](https://github.com/SciML/SciMLStyle)
 
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 `SciMLOperators` is a package for managing linear, nonlinear,
 time-dependent, and parameter dependent operators acting on vectors,
 (or column-vectors of matrices). We provide wrappers for matrix-free