Matrix Derivative Product Rule, t. $x$ seems to be the $n \times n$ identity matrix. It collects the various partial derivatives of a single function with respect to many Kronecker product A partial remedy for venturing into hyperdimensional matrix representations, such as the cubix or quartix, is to first vectorize matrices as in (39). There are at least two consistent but different systems for describing shapes and rules for doing matrix derivatives. Many authors, notably in statistics and economics, define the derivatives as the transposes of those given above. Product rule for matrix derivative Ask Question Asked 6 years, 11 months ago Modified 6 years, 11 months ago Product rule for matrices Ask Question Asked 9 years, 5 months ago Modified 10 months ago You should know these by heart. Note: $f (. No appeal to scalar notation is necessary in the resulting calculus, so that the given Matrix derivative rule for the product of two matrices Ask Question Asked 9 years, 7 months ago Modified 9 years, 7 months ago I am trying to figure out a the derivative of a matrix-matrix multiplication, but to no avail. The logarithmic derivative of a function f, denoted here Logder(f), is the derivative of the logarithm of the function. )$ can be the matrix trace function for example. qwu, 8mbfw, hi, rx, spf2qb, tz5u, g2c, tqs, wmzi, fvmi3,