Re: FullSimplify again ...

*To*: mathgroup at smc.vnet.net*Subject*: [mg59162] Re: FullSimplify again ...*From*: dh <dh at metrohm.ch>*Date*: Sun, 31 Jul 2005 01:30:37 -0400 (EDT)*References*: <dcf3d4$lgl$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi Detlef, That is not strange, but WRONG. Wolfram should take notice. consider: Product[(5-i)/5,{i,1,n}] gives (-1/5)^n Pochhammer[-4, n] this is nothing else than another "noble" way to write the product and is correct. Hoever, FullSimplify "simplifies" this to zero, what is definitly wrong. sincerely, Daniel Detlef Müller wrote: > Hello. > I happened to type the following lines: > > > > In[15]:= f=FullSimplify[Product[(5-i)/5,{i,1,n}]] > Out[15]= 0 > > In[17]:= Product[(5-i)/5,{i,1,n}]/.(n->4) > Out[17]= 24/625 > > Strange, isn't it? > > Version Number: 5.1.1.0 > Platform: X > > Greetings, > Detlef >