This is some functions for Pari/GP manipulating periodic or eventually periodic vectors. Such a vector has some fixed initial elements, then an infinitely repeating periodic part. Functions include is free software (free as in freedom), published under the terms of the GNU General Public License (v3 or higher). Download version 2 here, (20k, and sig)
vecper-2.tar.gz (82k, and sig)

Just is enough to run. Comments at the start are an introduction and overview, then each function has an addhelp(). The tar file includes some example scripts, self-tests, and a few work-in-progress extras. The extras might work but may change wildly. The sig files are Gnu PG ascii armoured signatures generated from my key.


In version 1, vecper_normalize() had a bug rotating the periodic part to cover some of the fixed part.

This page Copyright 2019, 2022, 2023 Kevin Ryde, except for the GPLv3 logo which is Copyright Free Software Foundation and used here in accordance with its terms.

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