toy.raymond at gmail.com
Mon Nov 30 18:03:39 CST 2009
Current CVS says gamma_incomplete(1/2,0) is sqrt(%pi)/2. But the help
for gamma_incomplete says gamma_incomplete(a,z) =
integrate(exp(-t)*t^(a-1),t,0,z). (This matches A&S 6.5.2.)
So from the documentation, I would expect the integral to be 0.
Which is correct? Since A&S is our reference, I think the current value
is incorrect and we should return 0.
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