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simplify_full() fails to simplify simple constant expressions to zero #23738

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mezzarobba opened this issue Aug 28, 2017 · 1 comment
Open

simplify_full() fails to simplify simple constant expressions to zero #23738

mezzarobba opened this issue Aug 28, 2017 · 1 comment
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c: symbolics p: major / 3 t: enhancement wishlist item

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@mezzarobba
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An issue found by Victor Spitzer: Sage fails to simplify

sage: f = log(sqrt(2) - 1) + log(sqrt(2) + 1)
sage: f.simplify_full()
log(sqrt(2) + 1) + log(sqrt(2) - 1)

without help. Doing

sage: f.simplify_real().simplify_log()
0

works, but it would be nice if simplify_{log,full}) detected by themselves that simplify_real() is applicable in this case.

Component: symbolics

Issue created by migration from https://trac.sagemath.org/ticket/23738
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@mezzarobba