# Questions tagged [differentiation]

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### How to derive the adjoint sensitivity equations for a least squares objective function gradient

The Problem I would like to determine the gradient of a least squares objective function which depends on a vector of 40 parameters $p$, and the solution of a system of 32 differential equations. In ...
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### How to get the derivatives of the determinant and inverse of 2nd-order tensor wrt itself in SymPy?

I have a second-order tensor for which I need to compute the derivatives of its determinant and inverse w.r.t. itself. The equations are as follows: \frac{\partial \, det(\mathbf{F})}{\partial F_{...
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### second order finite function for 2D function in Python

My task is to Implement the derivative with the 2nd order finite difference for 2D functions. Evaluate the accuracy of the numerical derivatives of J(x,y) at the point (x = 5, y = −2) by determining ...