#8383: should sigma(x) produce an error?
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Reporter: zimmerma | Owner: burcin
Type: enhancement | Status: new
Priority: minor | Milestone: sage-4.3.4
Component: calculus | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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I hit the following problem:
{{{
sage: f(x) = sigma(x)-x
...
TypeError: unable to convert x (=x) to an integer
}}}
Wouldn't it better to keep sigma(x) unevaluated for x not an integer?
Note that {{{f = lambda(x):sigma(x)-x}}} works but it less nice.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8383>
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