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Jacobian matrix   (English)

Definition Niveau 4

For n functions fi of n variables xi, the Jacobian matrix is: (
[(∂f1)/(∂x1)]
[(∂f1)/(∂x2)]
...
[(∂f1)/(∂xn)]
[(∂f2)/(∂x1)]
[(∂f2)/(∂x2)]
...
[(∂f2)/(∂xn)]
:
:
:
[(∂fn)/(∂x1)]
[(∂fn)/(∂x2)]
...
[(∂fn)/(∂xn)]
) We most frequently use the determinant of this matrix, the Jacobian, rather than the matrix itself.

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