Bloch

This package includes two functions, evolution.m and and pulse.m. The former accept two structures, one with a set of spins with an initial position in spherical coordinates, T1, T2 and a frequency offset from the rotating frame and two, a set of parameters dictating the simulation. These inputs... Platforms: Matlab

Schedule when your desktop wallpaper changes with a user defined time interval. You can choose jpg files when you are using microsoft active desktop and make your desktop icons transparent in Windows versions below XP. Platforms: Windows

JEnum is a Java runtime jar for working with enumerated types, as described in Josh Bloch's Effective Java, and a one-way code generator to create the needed classes from xml. The API is patterned after the Java Collections API. Platforms: Windows, Mac, Linux

Meep (or MEEP) is a free finite-difference time-domain (FDTD) simulation software. Meep FDTD is a free finite-difference time-domain (FDTD) simulation software package developed at MIT to model electromagnetic systems, along with our MPB eigenmode package. Here are some key features of "Meep... Platforms: *nix