Alex Barnett is an applied mathematician and numerical analyst. He joined the Dartmouth College faculty in 2005, coming from a varied background including a physics Ph.D at Harvard, a post-doc in radiology at MGH, and a Courant Instructorship at NYU. His research interests include scientific computing, partial differential equations, wave scattering, Stokes flow, Laplacian eigenvalues, quantum chaos, integral equations, fast algorithms, biomedical imaging, and neuroscience. His awards include receiving several NSF grants as PI, and Dartmouth's Karen E. Wetterhahn Memorial Award for Distinguished Creative or Scholarly Achievement. Since late 2014 he has split his time between Dartmouth and the Numerical Algorithms Group in the Center for Computational Biology at the Flatiron Institute (Simons Foundation). He has created six new courses, on topics such as the mathematics of music, and high-precision computation.