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implement SR.next_variable() #15831

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rwst opened this issue Feb 18, 2014 · 1 comment
Open

implement SR.next_variable() #15831

rwst opened this issue Feb 18, 2014 · 1 comment
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c: symbolics p: major / 3 t: enhancement

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@rwst
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rwst commented Feb 18, 2014

Idea by ppurka in #14403. Something like this, not necessarily digit suffixes:

sage: SR.next_variable('x') # suppose x, x0, x1 are already defined
x2
sage: SR.next_variable('x2')
x3
sage: SR.next_variable('x0y') # suppose that x0y is not yet defined.
x0y

This would be better than

sage: SR.symbol()
symbol161
sage: SR.symbol()
symbol164

See also #14972

CC: @eviatarbach

Component: symbolics

Keywords: variable

Issue created by migration from https://trac.sagemath.org/ticket/15831
@rwst rwst added this to the sage-6.2 milestone Feb 18, 2014
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@sagetrac-vbraun-spam sagetrac-vbraun-spam mannequin modified the milestones: sage-6.2, sage-6.3 May 6, 2014
@sagetrac-vbraun-spam sagetrac-vbraun-spam mannequin modified the milestones: sage-6.3, sage-6.4 Aug 10, 2014
@mkoeppe mkoeppe removed this from the sage-6.4 milestone Dec 29, 2022
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