#14984: Cannot plot functions that use mpmath if complex numbers occur in the
image
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Reporter: eviatarbach | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.12
Component: coercion | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Dependencies: | Stopgaps:
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Currently, trying to plot a function which uses mpmath and returns a
complex number in the plotting domain will return an error. For example,
{{{
sage: from sage.libs.mpmath import utils
sage: import mpmath
sage: class Test(BuiltinFunction):
....: def __init__(self):
....: BuiltinFunction.__init__(self, name='test', nargs=1)
....: def _evalf_(self, x, parent):
....: return utils.call(mpmath.log, x, parent=parent)
....:
sage: test = Test()
sage: plot(test, x, -1, 1)
AttributeError: type object 'float' has no attribute 'complex_field'
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/14984>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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