Newbie mathematica question

*To*: mathgroup at smc.vnet.net*Subject*: [mg37123] Newbie mathematica question*From*: "Anonymous" <not at for.you>*Date*: Thu, 10 Oct 2002 03:21:13 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Hi, I have defined a function from R -> R^3 as follows: f[t_] = {t + Sqrt[3] Sin[t], 2 Cos[t], t Sqrt[3] - Sin[t]} So It's basically a vector whose coordinates are determined based on the values you pass in. Then I took the derivative by just typing f', which outputs {1 + Sqrt[3] Cos[#1], -2 Sin[#1], Sqrt[3] - Cos[#1]}& What I'd like to do is have Mathematica calculate the norm of this as it would any vector, so that I can play with the norm function. As it turns out, the norm in this case is identical to Sqrt[8], so it would be nice if Mathematica could figure that out. Is it possible to do this? Thanks