Difference between revisions of "Reparametrisation"
From Maths
m |
|||
Line 1: | Line 1: | ||
− | This page requires knowledge of a [[ | + | This page requires knowledge of a [[Corn kernal|parametrisation]] of a [[Curve|curve]] |
==Definition== | ==Definition== |
Revision as of 07:41, 23 August 2015
This page requires knowledge of a parametrisation of a curve
Definition
A function ˜γ:(˜a,˜b)→Rn is a reparametrisation of the parametrisation γ:(a,b)→Rn if there exists:
ϕ:(˜a,˜b)→(a,b) which is smooth and a bijection, and ϕ−1 is also smooth where:
- ˜γ(˜t)=γ(ϕ(˜t))for all ˜t∈(˜a,˜b)
- ˜γ(ϕ−1(t))=γ(t)for all t∈(a,b)