Ticket #1345 (closed defect: fixed)

Opened 5 years ago

Last modified 5 years ago

[with patch, with positive review] I is sometimes wrapped in SymbolicConstant, sometimes not

Reported by: cwitty Owned by: mhansen
Priority: major Milestone: sage-2.8.15
Component: calculus Keywords:
Cc: Work issues:
Report Upstream: Reviewers:
Authors: Merged in:
Dependencies: Stopgaps:

Description

This behavior seems strange: 

 sage: foo = I+I
 sage: foo._operands
 [I, I]
 sage: [type(i) for i in foo._operands]
 [<class 'sage.calculus.calculus.SymbolicConstant'>,
  <class 'sage.functions.constants.I_class'>]

And here's another strange thing (probably the same bug): 

 sage: is_SymbolicExpression(SR(I))
 False

Attachments

1345.patch Download (3.7 KB) - added by mhansen 5 years ago.

Change History

Changed 5 years ago by mhansen

comment:1 Changed 5 years ago by mhansen

  • Status changed from new to assigned
  • Summary changed from I is sometimes wrapped in SymbolicConstant, sometimes not to [with patch] I is sometimes wrapped in SymbolicConstant, sometimes not

comment:2 Changed 5 years ago by mhansen

  • Milestone changed from sage-2.9 to sage-2.8.15

comment:3 Changed 5 years ago by mhansen

This should be applied after #847.

comment:4 Changed 5 years ago by cwitty

  • Summary changed from [with patch] I is sometimes wrapped in SymbolicConstant, sometimes not to [with patch, with positive review] I is sometimes wrapped in SymbolicConstant, sometimes not

The code looks good and the doctests in the affected files pass. I approve.

comment:5 Changed 5 years ago by mabshoff

  • Status changed from assigned to closed
  • Resolution set to fixed

Merged in 2.8.15.alpha0.

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