#8860: incoherent types for real numbers
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Reporter: zimmerma | Owner: AlexGhitza
Type: defect | Status: new
Priority: minor | Milestone:
Component: basic arithmetic | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by robertwb):
Ah, sorry. That is because RealNumber in the global scope is not the
actual type, but a function to create RealNumbers. (This is similar in
spirit to how PolynomialRing(...) is a function creating polynomial rings,
not a type). Note that {{{type(x) is RealNumber}}} would never work for
the same reason.
{{{
sage: isinstance(1.2, sage.rings.real_mpfr.RealNumber)
True
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8860#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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