Calling MuPAD rank and jacobian

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Thomas Ligon
Thomas Ligon 2016-3-16
I recently learned that it is easy to call the MuPAD version of rank, and it is faster than the other version. My test code includes these lines:
R1=rank(A);
R2=feval(symengine,'linalg::rank',A);
Now I would like to test something similar for the jacobian, but can't figure out how to write it. My test includes these lines, but the second one causes errors.
J1 = jacobian(F1,V1);
J2 = feval(symengine,'linalg::jacobian',F1,V1);
What's the correct syntax for this?

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