#8821: Adding a section on coercion to the tutorial (guided tour)
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Reporter: SimonKing | Owner: mvngu
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.4.1
Component: documentation | Keywords: tutorial coercion
Author: Simon King | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by SimonKing):
Replying to [comment:4 leif]:
> Regarding comparison:
> It should be stressed that not only {{{a == b}}} returns {{{False}}} if
coercion fails but also {{{a != b}}} (silently) returns {{{False}}} in
that case.
No, it doesn't:
{{{
sage: GF(5)(1) == GF(2)(1)
False
sage: GF(5)(1) != GF(2)(1)
True
sage: R.<x,a,b> = QQ[]
sage: S.<x,c,d> = QQ[]
sage: x == R('x')
False
sage: x != R('x')
True
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8821#comment:6>
Sage <http://www.sagemath.org>
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