How to implement Linear Aproximation of a function

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Sultan
Sultan il 18 Ott 2017
Commentato: Jonathan Brake il 3 Mar 2021
How one can translate the linear approximation of the function f(x,y) into MATLAB. The resulting approximation given by :
f(x,y) = f(x0,y0) + fx(x0,y0)(x-x0) + fy(x0,y0)(y-y0)
both x0 and y0 are known but how this can be translated into MATLAB

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Birdman
Birdman il 18 Ott 2017
The attached file pplane8 might help you. This tool helps you to identify nonlinear two variable first order differential equations and find the equilibrium points and draw phase portraits.

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