#7512: plot3d variable ranges should respect the named variable, if there is one
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Reporter: jason | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.3
Component: graphics | Keywords:
Work_issues: | Author:
Reviewer: | Merged:
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This is a somewhat subtle issue if the function is a pure python function
(you'd need to analyze the argument names), but maybe a convention is that
if variable names are specified, they must match up to argument names in
the function, and then they are slotted into the function using a
dictionary, so that no matter where in the variable range list the range
for x appears, it always is sent to the function as f(x=value).
See http://sagenb.org/home/jason3/302/
I think that each of these should return the same plot:
{{{
sage: var('x,y')
sage: def f(x,y):
... return x*sin(y)
...
sage: plot3d(f, (x,0,3),(y,-6,6),viewer='tachyon')
sage: plot3d(f, (y,-6,6),(x,0,3),viewer='tachyon')
sage: g(x,y)= x*sin(y)
sage: plot3d(g, (x,0,3),(y,-6,6),viewer='tachyon')
sage: plot3d(g, (y,-6,6),(x,0,3),viewer='tachyon')
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7512>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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