How to find the Jacobin of variables in the form x(i)
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I have a set of nonlinear constraints in which the variables are defined in the form x(i). For example, I have c=1/(x(1)-x(2))+1/(x(3)-x(4)). How to find the jacobian of this constraint.
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Ameer Hamza
le 15 Mai 2020
try this
x = sym('x', [1, 4]);
c = 1/(x(1)-x(2))+1/(x(3)-x(4));
jc = jacobian(c)
Result
jc =
[ -1/(x1 - x2)^2, 1/(x1 - x2)^2, -1/(x3 - x4)^2, 1/(x3 - x4)^2]
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