#11458: Better example for plotting cube root function
------------------------------------------------+---------------------------
Reporter: kcrisman | Owner: jason, was
Type: enhancement | Status:
positive_review
Priority: minor | Milestone: sage-5.10
Component: graphics | Resolution:
Keywords: beginner | Work issues:
Report Upstream: N/A | Reviewers: Karl-Dieter
Crisman
Authors: Mike Jackson, Martin Boyanov | Merged in:
Dependencies: | Stopgaps:
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Changes (by kcrisman):
* status: needs_work => positive_review
Old description:
> We currently use a lambda construction in the plot documentation for
> showing how to get around {{{x^(1/3)}}} giving complex numbers for
> negative input.
>
> Mike Jackson of Grove City College had a better idea, which his faculty
> use with Mathematica.
>
> {{{
> plot(sign(x)*abs(x)^(1/3),-1,1)
> }}}
>
> Let's put this in the documentation!
New description:
We currently use a lambda construction in the plot documentation for
showing how to get around {{{x^(1/3)}}} giving complex numbers for
negative input.
Mike Jackson of Grove City College had a better idea, which his faculty
use with Mathematica.
{{{
plot(sign(x)*abs(x)^(1/3),-1,1)
}}}
Let's put this in the documentation!
----
Apply [attachment:trac_11458-reviewed.patch].
--
Comment:
Patchbot, apply trac_11458-reviewed.patch
Okay, all is well. Thanks!
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11458#comment:4>
Sage <http://www.sagemath.org>
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