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symbolic_expression_from_string does not support arbitrary precision #10898

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sagetrac-flawrence mannequin opened this issue Mar 10, 2011 · 3 comments
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symbolic_expression_from_string does not support arbitrary precision #10898

sagetrac-flawrence mannequin opened this issue Mar 10, 2011 · 3 comments
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@burcin
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c: calculus r: invalid t: bug

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sagetrac-flawrence mannequin commented Mar 10, 2011

In some places (e.g. #8495), sage.calculus.calculus.symbolic_expression_from_string is being used as a safer alternative to sage_eval. However, it does not seem to support numbers with arbitrary precision. It should.

sage: from sage.calculus.calculus import symbolic_expression_from_string as sefs
sage: pi_on_two = '1.57079632679489661923132169163975144209858469968755'
sage: sefs(pi_on_two)
1.57079632679
sage: sage_eval(pi_on_two)
1.5707963267948966192313216916397514420985846996875

Component: calculus

Reviewer: Vincent Delecroix

Issue created by migration from https://trac.sagemath.org/ticket/10898
@sagetrac-flawrence sagetrac-flawrence mannequin added this to the sage-5.11 milestone Mar 10, 2011
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@jdemeyer jdemeyer modified the milestones: sage-5.11, sage-5.12 Aug 13, 2013
@sagetrac-vbraun-spam sagetrac-vbraun-spam mannequin modified the milestones: sage-6.1, sage-6.2 Jan 30, 2014
@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
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mkoeppe commented May 4, 2022

comment:6

Works correctly in 9.6.rc3

@mkoeppe mkoeppe removed this from the sage-6.4 milestone May 4, 2022
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mkoeppe commented May 10, 2022

Reviewer: Vincent Delecroix

@mkoeppe mkoeppe closed this as completed May 11, 2022
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