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Jacobian with FindRoot

I would like to extract from FindRoot the Jacobian matrix

Is there a command for this purpose that uses directly the calculation

of FindRoot to get the Jacobian using Reap and Sow?

Thanks for your time.

POSTED BY: Housam Binous

I think this isn't possible, but I may be wrong.

Example see here:

 functions = {x^2 + y^2 - 4, E^x + y - 1};
 ResourceFunction["JacobianMatrix", ResourceSystemBase -> 
 "https://www.wolframcloud.com/obj/resourcesystem/api/1.0"][functions, {x,y}]//MatrixForm

or:

vars = {x, y};
functions = {x^2 + y^2 - 4, E^x + y - 1};
jacobianUsingOuter = Outer[D, functions, vars];
MatrixForm[jacobianUsingOuter]

Regards M.I.

POSTED BY: Mariusz Iwaniuk
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