pure function

*To*: mathgroup at smc.vnet.net*Subject*: [mg87332] pure function*From*: haitomi <tpnycity at yahoo.com>*Date*: Tue, 8 Apr 2008 05:34:52 -0400 (EDT)

Hello All, I need help with two pure functions 1) Li[Ranlist,x] that return a list of x element selected at random from Ranlist. (Is there any way to gennerate random from Ranlist? I have RanList=Range[-100,100]) 2) the function 4Sumf[x] is computing the sum of 4 squares of x. If I have x=1, this function will gennerate 1^2+0^2+0^2+0^2, if x=4 then 2^2+0^2+0^2+0^2, if x=7 2^2+1^2+1^2+1^2 Is anyone out there have any idea? Thanks All, Tomi

**Follow-Ups**:**Re: pure function***From:*Andrzej Kozlowski <akoz@mimuw.edu.pl>