#7742: add a compose function to sage
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Reporter: was | Owner: AlexGhitza
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.6.1
Component: basic arithmetic | Keywords:
Author: Christopher Olah, Felix Lawrence | Upstream: N/A
Reviewer: Paul Zimmermann | Merged:
Work_issues: |
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Comment(by zimmerma):
> Given that symbolic functions have named variables, is this the correct
behavior?
{{{
sage: f(x) = x+1
sage: g(y) = y+1
sage: compose(f,g)
y + 2
sage: compose(g,f)
x + 2
}}}
[please use { { { and } } } to quote Sage examples]
I can't reproduce this. I get with the patch from Felix:
{{{
sage: f(x) = x+1
sage: g(y) = y+1
sage: compose(f,g)
<function <lambda> at 0x1787c80>
sage: compose(f,g)(x)
x + 2
}}}
which seems ok to me.
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7742#comment:21>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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