#11513: add is_trivial_zero() method to symbolic expressions
------------------------------+---------------------------------------------
Reporter: burcin | Owner: burcin
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.0
Component: symbolics | Keywords: sd35.5
Work_issues: | Upstream: N/A
Reviewer: Benjamin Jones | Author: Burcin Erocal
Merged: | Dependencies:
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Old description:
> A fast way to check if an expression is zero is important in many places,
> see for example comment:15:ticket:11143. We should put the numerical
> check mentioned there in a method (`_is_numerically_zero()`) of symbolic
> expressions (`sage.symbolic.expression.Expression`).
>
> Apply [attachment:trac_11513-is_trivally_zero.patch].
New description:
A fast way to check if an expression is zero is important in many places,
see for example comment:15:ticket:11143. We should put the numerical check
mentioned there in a method (`_is_numerically_zero()`) of symbolic
expressions (`sage.symbolic.expression.Expression`).
Apply [attachment:trac_11513-is_trival_zero.patch].
--
Comment(by burcin):
Replying to [comment:19 zimmerma]:
> Just a minor point: I'd prefer as name {{{is_trivial_zero}}} which is
simpler.
Done, see attachment:trac_11513-is_trival_zero.patch.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11513#comment:21>
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