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Implementation of mldivide?

From: CdeMills
Subject: Implementation of mldivide?
Date: Tue, 26 Jul 2011 01:33:33 -0700 (PDT)


I compute the derivative of some vector like this: from an input data vector
y, I first compute a vector Z. From the values of Z I compute L, whose
columns are function of elements Zi. Then I compute 
B = L\y
Now I'm trying to compute dB/dZ. To this end, I assume that the analytical
form of B is
I obtain a formulation implying B, L, y, and dL/dZ. When I try to validate
this by simulations, i.e. introducing noise on y, having Z, L, and B varying
with noise, I can validate most of the components of dBdZ, but not all. So
I'm wondering: how is mldivide implemented analytically ? In which source
file is its code ?



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