Purple SAGE

Create viable free open source software for arithmetic geometry research

Purple SAGE is research-oriented mathematics software based on Sage. The main goal is to create viable free open source software for arithmetic geometry research. The lead developer is William Stein.

PSAGE Python Library

The PSAGE Python library, which is hosted at Google code is a new Python library. It can be installed into any recent copy of Sage, or installed into the PSAGE distribution (see below).

PSAGE Distribution

The PSAGE distribution is a stripped down version of the Sage distribution. For example, it does not include anything that relies on Fortran or LISP. It's main design constraint is that it should offer enough capabilities that the PSAGE library (see above) works in it. The goals are that the library get smaller, and that all the multi-process pexpect code disappears (so PARI, GAP and Singular are used *only* through Cython).