#15355: representation of CIF-element plus SR-element
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Reporter: dkrenn | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.13
Component: symbolics | Resolution:
Keywords: SR, CIF, representation | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Description changed by dkrenn:
Old description:
> We have
> {{{
> sage: x+CIF(RIF(-2,2), 0)
> x
> }}}
> and
> {{{
> sage: x + CIF(RIF(-2,2),RIF(-2,2))
> x
> }}}
> which are wrong representation strings. Anyhow, the result themselves are
> correct since, for example, we have
> {{{
> sage: z = (x+CIF(RIF(-2,2),RIF(-2,2)))
> sage: z - x
> 0.?e1 + 0.?e1*I
> }}}
>
> In contrast, the following things work:
> {{{
> sage: x+RIF(-2,2)
> x + 0.?e1
> sage: x+CIF(RIF(3.14,3.15), RIF(3.14, 3.15))
> x + 3.15? + 3.15?*I
> sage: CIF(RIF(-2,2),RIF(-2,2))
> 0.?e1 + 0.?e1*I
> sage: x+CIF(RIF(3.14,3.15), 0)
> x + 3.15?
> }}}
New description:
We have
{{{
sage: x + CIF(RIF(-2,2), 0)
x
}}}
and
{{{
sage: x + CIF(RIF(-2,2), RIF(-2,2))
x
}}}
which are wrong representation strings. Anyhow, the result themselves are
correct since, for example, we have
{{{
sage: z = (x + CIF(RIF(-2,2),RIF(-2,2)))
sage: z - x
0.?e1 + 0.?e1*I
}}}
In contrast, the following things work:
{{{
sage: x + RIF(-2,2)
x + 0.?e1
sage: x + CIF(RIF(3.14,3.15), RIF(3.14, 3.15))
x + 3.15? + 3.15?*I
sage: CIF(RIF(-2,2), RIF(-2,2))
0.?e1 + 0.?e1*I
sage: x + CIF(RIF(3.14,3.15), 0)
x + 3.15?
}}}
--
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Ticket URL: <http://trac.sagemath.org/ticket/15355#comment:1>
Sage <http://www.sagemath.org>
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