sym() and vpa() refactor#804

Merged

cbm755 merged 12 commits intomasterfrom

sym_vpa_refactor

Jul 24, 2017

Commits on May 18, 2017

Commits on May 19, 2017

@sym/sym: update docs for sqrt(integer) heuristic
cbm755
committed

Commits on May 20, 2017

Merge remote-tracking branch 'origin/master' into sym_vpa_refactor
cbm755
committed