[Scipy-tickets] [SciPy] #302: romb fails to complete integration

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Sun Nov 5 04:47:31 CST 2006

#302: romb fails to complete integration
 Reporter:  jmlloren         |       Owner:  somebody
     Type:  defect           |      Status:  new     
 Priority:  normal           |   Milestone:          
Component:  scipy.integrate  |     Version:          
 Severity:  critical         |    Keywords:          
 When one tries to accomplish a simple integration with romb function in
 scipy.integrate.quadrature module, python reports an error. For example:

 import numpy as N
 import scipy.integrate as Int

 A=N.array([N.sin(i*2*N.pi/float(NP-1)) for i in range(NP)])

 Python reports:
   File "<stdin>", line 1, in ?
   File "/usr/lib/python2.4/site-packages/scipy/integrate/quadrature.py",
 line 258, in romb
     slice_R = tupleset(slice_R, slice(start,stop,step))
 TypeError: tupleset() takes exactly 3 arguments (2 given)

 Indeed, when
 slice_R = tupleset(slice_R, slice(start,stop,step))
 is replaced by
 slice_R = tupleset(slice_R, axis, slice(start,stop,step))
 the integration finishes successfully.


Ticket URL: <http://projects.scipy.org/scipy/scipy/ticket/302>
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