## Description

We include an introduction to Putzer's Algorithm for computing the matrix exponential, a topic not usually covered in introductory ODE courses. This simple algorithm allows one to compute the exponential of any matrix whose eigenvalues are known.

A computer algebra system can be helpful for this material, since the computations can be a bit cumbersome.

For the reader who wants to know a bit more, proofs for many results are included in an appendix.

The analysis, however, relies only on elementary matrix algebra and techniques for series that most students see in a second semester calculus course.

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