University · Mathematics · Analysis II (Multivariable Calculus)

Implicit and Inverse Function Theorems

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Two of the most powerful existence theorems in multivariable calculus: the Implicit Function Theorem tells us when a curve or surface defined by an equation F(x,y)=0 can locally be described as the graph of a function, and the Inverse Function Theorem tells us when a smooth map has a smooth local inverse. Both rest on a single condition — a Jacobian being nonzero or invertible — and both underlie optimization theory, differential geometry, and the study of manifolds.

Inhaltsübersicht

  • Motivation and the Implicit Function Theorem in Two Variables
  • The General Implicit Function Theorem and a Worked Example
  • The Inverse Function Theorem
  • Worked Example: Polar Coordinates and Practical Applications
Circle x^2+y^2=1 shown with a locally defined function y=g(x) near a point where the tangent is not vertical
Pixabay – Pixabay License

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Learn Implicit and Inverse Function Theorems — Analysis II (Multivariable Calculus) Mathematics | Summary, Flashcards & Quiz