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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
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