Re: a simple product, but with "i = 1...n AND i != x"

*To*: mathgroup at smc.vnet.net*Subject*: [mg70250] Re: [mg70243] a simple product, but with "i = 1...n AND i != x"*From*: Adriano Pascoletti <pascolet at dimi.uniud.it>*Date*: Tue, 10 Oct 2006 06:11:55 -0400 (EDT)*References*: <200610090555.BAA19674@smc.vnet.net>

In[1]:= f[x_] := Times @@ (x - #1 & ) /@ DeleteCases[Range[n], x] In[2]:= n = 5; f[y] Out[2]= (-5 + y)*(-4 + y)*(-3 + y)*(-2 + y)*(-1 + y) In[5]:= n = 5; f[4] Out[5]= -6 Adriano Pascoletti On 9 ott 2006, at 07:55, xarnaudx at gmail.com wrote: > hi, > i would like to make a function like > f[x_] := Product[x - i, {i, 1, n} AND i != x} > > obviously, the end of the expression is syntactically incorrect. But > how to rewrite this product correctly? > thanks >

**References**:**a simple product, but with "i = 1...n AND i != x"***From:*"xarnaudx@gmail.com" <xarnaudx@gmail.com>