Improve degree estimation for power

Branch: amcrae/ufl:amcrae/power-est-fix

Branch: fenics-project/ufl:master

Merged

#75 · Created 2017-06-23 · Last updated 2017-07-20

Merged pull request

Merged in amcrae/ufl/amcrae/power-est-fix (pull request #75)

89a0b92·Author: Andrew McRae·Closed by: Miklós Homolya·2017-07-20

Per Issue #98. Also changed the heuristic, with Martin's approval, from *2 to the standard +2.