#5438: Incorrect documentation and/or functionality in plot filling
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Reporter: kcrisman | Owner: was
Type: defect | Status: new
Priority: minor | Milestone: sage-3.4.1
Component: graphics | Keywords: plot fill
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The following example from documentation seems to work:
{{{
def b(n): return lambda x: bessel_J(n, x) + 0.5*(n-1)
plot([b(c) for c in [1..5]], 0, 40, fill = dict([(i, i+1) for i in
[0..3]]))
}}}
but the behavior is the same as
{{{
def b(n): return lambda x: bessel_J(n, x) + 0.5*(n-1)
plot([b(c) for c in [1..5]], 0, 40, fill = dict([(i, 5) for i in [0..3]]))
}}}
or anything else that evaluates to True as the second element of the dict.
The proper behavior is
{{{
def b(n): return lambda x: bessel_J(n, x) + 0.5*(n-1)
plot([b(c) for c in [1..5]], 0, 40, fill = dict([(i, [i+1]) for i in
[0..3]]))
}}}
which is incidentally quite beautiful.
There are a few other such misleading/wrong example, and the documentation
for how to use a dictionary which is a little confusing for people not
familiar with Python yet
However, this is really related to a bug, namely that for some reason the
option of plotting between a function and a line isn't parsing properly.
These should hopefully be easy to fix and are closely related enough that
one ticket seemed appropriate.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5438>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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