chebfun/chebfun — pull request #1175 by Hadrien-Montanelli (2014-09-25 14:56:13+00:00)
Title: Delete the classes nonPeriodicTech and periodicTech.

The function isPeriodicTech is now implemented at the smoothfun level, and outputs 0 by default.
Fourtech overwrites it and outputs 1.