#10489: plot_slope_field broken
------------------------+---------------------------------------------------
Reporter: ManDay | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone:
Component: graphics | Keywords: plot_slope_field
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
'''plot_slope_field( lambda x,y: x+y,(x,-3,4),(y,-2,2) );'''
results in
{{{
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_15.py", line 10, in <module>
exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8
-*-\\n" +
_support_.preparse_worksheet_cell(base64.b64decode("cGxvdF9zbG9wZV9maWVsZCggbGFtYmRhIHgseTogeCt5LCh4LC0zLDQpLCh5LC0yLDIpICk7"),globals())+"\\n");
execfile(os.path.abspath("___code___.py"))
File "", line 1, in <module>
File "/tmp/tmp639i0K/___code___.py", line 3, in <module>
exec compile(u'plot_slope_field( lambda x,y: x+y,(x,-_sage_const_3
,_sage_const_4 ),(y,-_sage_const_2 ,_sage_const_2 ) );
File "", line 1, in <module>
File "/homes/sageserv/sage-4.5.1-Solaris_10_SPARC/local/lib/python2.6
/site-packages/sage/plot/plot_field.py", line 220, in plot_slope_field
norm = sqrt((f**2+1))
TypeError: unsupported operand type(s) for ** or pow(): 'function' and
'int'
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10489>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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