I got a curve, that is non parametrized and I need to find principal unit normal vector to that curve at certain point
in my case it is y=e^x at point x=1
what do I do ??
It's actually unusual for a curve in two dimensions as parametric equations since it is simpler to write it as a single xy equation. If that was a problem and you knew how to find a normal vector for a parameterized curve, let x itself be the parameter: x= t, y= .