Taking the derivative of a matrix is equivalent to writing a system of different... | Hacker News

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		pid-1 on April 15, 2023 \| parent \| context \| favorite \| on: Matrix Calculus: Calculate derivatives of matrices Taking the derivative of a matrix is equivalent to writing a system of differential equations.

wenc on April 15, 2023 [–]

Not really. A matrix derivative is just a derivative -- it doesn't have to be part of an equation.

The derivative of x² is 2x (where x is a scalar)

The derivative of vᵀv is 2v (where v is a vector)

There's no differential equation.

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