[sage-support] Re: Hypergeometric sum

2008-08-25 Thread William Stein
On Sat, Aug 23, 2008 at 1:08 PM, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > >> What is your point? > > Actually, I meant that more about Maplesoft. Sage support is usually good in > this group, just wasn't very good in this thread. I see. Thanks for pointing this out and explaining further. Si

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread Ondrej Certik
>>> Actually, I meant that more about Maplesoft. Sage support is usually good in >>> this group, just wasn't very good in this thread. >> >> I am sure many people have tried to fix your problem. Certainly I did, >> I tried it in SymPy to see if it's easy for us to fix it, I found a >> bug, I repor

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread Alec Mihailovs
Ondrej and William, Thank you, it's nice to know about that. Alec --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread William Stein
On Sat, Aug 23, 2008 at 1:18 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote: > > On Sat, Aug 23, 2008 at 10:08 PM, Alec Mihailovs <[EMAIL PROTECTED]> wrote: >> >>> What is your point? >> >> Actually, I meant that more about Maplesoft. Sage support is usually good in >> this group, just wasn't very go

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread Ondrej Certik
On Sat, Aug 23, 2008 at 10:08 PM, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > >> What is your point? > > Actually, I meant that more about Maplesoft. Sage support is usually good in > this group, just wasn't very good in this thread. I am sure many people have tried to fix your problem. Certainly

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread Alec Mihailovs
> What is your point? Actually, I meant that more about Maplesoft. Sage support is usually good in this group, just wasn't very good in this thread. Alec --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe fr

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread William Stein
On Sat, Aug 23, 2008 at 12:50 PM, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > >>> I came across this example in a recent thread in Maple newsgroup. >> >> Here is the link, >> >> http://groups.google.com/group/comp.soft-sys.math.maple/browse_thread/thread/65248f258f5522ad?hl=en# >> >> Another link,

[sage-support] Re: Hypergeometric sum

2008-08-23 Thread Alec Mihailovs
>> I came across this example in a recent thread in Maple newsgroup. > > Here is the link, > > http://groups.google.com/group/comp.soft-sys.math.maple/browse_thread/thread/65248f258f5522ad?hl=en# > > Another link, to Mathematica newsgroup, > > http://groups.google.com/group/comp.soft-sys.math.math

[sage-support] Re: Hypergeometric sum

2008-08-21 Thread Alec Mihailovs
> I came across this example in a recent thread in Maple newsgroup. Here is the link, http://groups.google.com/group/comp.soft-sys.math.maple/browse_thread/thread/65248f258f5522ad?hl=en# Another link, to Mathematica newsgroup, http://groups.google.com/group/comp.soft-sys.math.mathematica/brows

[sage-support] Re: Hypergeometric sum

2008-08-21 Thread Alec Mihailovs
From: "Burcin Erocal" <[EMAIL PROTECTED]> > > it doesn't give an answer. This means that your expression doesn't have > a hypergeometric closed form in the sense of A=B, p. 143 [1]: > > http://www.cis.upenn.edu/~wilf/AeqB.html Is this a joke? After converting binomial coefficients to Pochhammer

[sage-support] Re: Hypergeometric sum

2008-08-21 Thread Burcin Erocal
On Thu, 21 Aug 2008 01:45:32 -0700 "William Stein" <[EMAIL PROTECTED]> wrote: > > On Thu, Aug 21, 2008 at 1:29 AM, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > > > > Both Maple and Mathematica give wrong answers to the following sum, > > > > Sum[Binomial[n, k]/Binomial[2 n, k]/k! (2 x)^k, {k, 0,

[sage-support] Re: Hypergeometric sum

2008-08-21 Thread William Stein
On Thu, Aug 21, 2008 at 1:29 AM, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > > Both Maple and Mathematica give wrong answers to the following sum, > > Sum[Binomial[n, k]/Binomial[2 n, k]/k! (2 x)^k, {k, 0, n}] > > I tried to find a way to calculate it in SAGE, but couldn't find symbolic > sums in