#12600: machine epsilon for RR, RDF, ...
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Reporter: dkrenn | Owner: jason, jkantor
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: numerical | Resolution:
Keywords: machine epsilon | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by dkrenn):
Replying to [comment:1 poeschko]:
> IMHO this is exactly what `ulp()` provides. From the docs:
Thanks for mentioning, I didn't know about `ulp`
> The only thing that I can imagine adding is a class method `eps()` to
`RR` and `RDF` that returns `one().ulp()`.
Yes, that would be good to have. (Note that `RR` is `RealField(53)`, i.e.
`RealField` has to be equipped with such a method.)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12600#comment:2>
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