What is the name of this determinant or matrix?
$$\begin{vmatrix} f_{xx} & f_{xy} \\ f_{yx} & f_{yy} \end{vmatrix}$$
Anything further explanation is greatly appreciated!
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Sign up to join this communityWhat is the name of this determinant or matrix?
$$\begin{vmatrix} f_{xx} & f_{xy} \\ f_{yx} & f_{yy} \end{vmatrix}$$
Anything further explanation is greatly appreciated!
This is the Hessian matrix and it is used in determining the shape of a 2-dimensional function. https://en.m.wikipedia.org/wiki/Hessian_matrix
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