Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

a bug in V8 when computing hypergeometric function 2F0 ?

38 views
Skip to first unread message

Rajesh Kumar A/l Parameswaran Nair (Staff)

unread,
Apr 26, 2012, 5:34:22 AM4/26/12
to
hello,

can anybody help?

i have been trying to compute the value of HypergeometricPFQ[{1,
0.5}, { }, 0.5] on mathematica V8.

mathematica does not return a numerical value , except to say that
the output is " complex infinity".

my hunch is that something is not right here as an earlier version
of mathematica , (V4 i think) , is able to do the job and give
the answer ... 1.27998+ 0.339235 i. This result is found in the book "
mathematica guide book for symbolics" by Michael Trott.

s is there a bug somewwere?

i have another question: can this be calculated on V7 ?

cheers



Yi Wang

unread,
May 1, 2012, 5:21:19 AM5/1/12
to
If you look at the series definition of 2F0, the series doesn't converge for the arguments you give. On the other hand, I am not sure if in this region the 2F0 is defined by analytical continuation.

-- It's not an answer, just some thoughts.
0 new messages