#8450: contour_plot chokes on function which involves imaginary numbers
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Reporter: jason | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.4
Component: graphics | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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This gives an error:
{{{
contour_plot(real_part(log(x+y*I+.001)), (x,-3,3),(y,-3,3),fill=False)
}}}
but this works:
{{{
a(x,y)=real(log(x+y*I+.001))
f=fast_callable(a,domain=CC)
contour_plot(f, (x,-3,3),(y,-3,3),fill=False)
}}}
and this works:
{{{
contour_plot(imag(log(x+y*I+.001)), (x,-3,3),(y,-3,3),fill=False)
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8450>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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