Hi all,

I am trying to find the normal of a curve alpha.

I have got tangent = d(alpha) / d(s)

and k*normal = d(tangent) / d(s)

So I could work out k and then do (d(tangent) / d(s)) / k but my problem sheet does it a different way and then implies k from the above equation (it doesn't specify how though!)

Thanks for any help