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 deriva

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.