It’s been a while since I’ve written code in Java. This week, however, I updated my installation of Eclipse, dusted off an old Java program, and saw that ancient artifact in a whole new way. Now, I’ve ...

A multi-order Adaptive Finite Differencing (AFD) method is developed for the kinetic energy operator in real-space, grid-based electronic structure codes. It uses atomic pseudo orbitals produced by ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Computational social scientists rely on code as the main instrument for doing ...