Math 2.0

Real functions Functions of several real variables Concept

Gradient

Builds on Partial derivativeDifferentiable function of several variables

Summary

Let ff be a differentiable real-valued function on an open subset of ℝn\mathbb{R}^n. Its gradient at a point aa is the vector ∇f(a)\nabla f(a) of its partial derivatives at aa. It points in the direction in which ff increases fastest, and its length is that fastest rate of increase. The derivative of ff at aa is the dot product with the gradient: Df(a)(v)=∇f(a)⋅vDf(a)(v) = \nabla f(a) \cdot v.

Reading path

To understand this page from the ground up, read these 7 pages in order. The foundations come first.

Show the path as a graph
Each page uses the pages above it. The colour of the bar on a box shows how strong the evidence is, and the box also gives it as text. The list has the same pages.
  • no evidence level
  1. Euclidean space object
  2. Function concept
  3. Total derivative concept
  4. Function of several variables concept
  5. Differentiable function of several variables concept
  6. Partial derivative concept
  7. Gradient concept

Where this leads

191 pages build on this one.

Further reading

  1. Web https://en.wikipedia.org/wiki/Gradient, lead section
About this page
Tag0ABK9V9Y64
URIm2://0ABK9V9Y64
Aliasesgradient-vector, grad
Kindconcept
WritingW1 stated
MSC26B12
UsesPartial derivative, Differentiable function of several variables
Same as

Markdown · JSON · Edit on GitHub

What this page needs for W2

  • edge equivalent in: a statement for each pair of definitions that a source proves equivalent (0 of 1)
  • edge instance_of in: at least two examples (0 of 2)
  • edge not_instance_of in: at least one non-example (0 of 1)
  • edge specializes both: the more general notions and the special cases (0 of 1)

The writing levels say how complete the text of a page is. They do not measure its truth.

What links here

Used by

Definitions