Find the linear and the quadratic approximations to the function f(x1,x2)= e^ax1-bx2 around the point (0, 0).
Anyone know how to answer this?
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Hint: What is the taylor expansion around a point for a 2-variable input function? (It will involve df/dx1, df/dx2, d^2f/dx1dx2, d^2f/dx1^2 and d^2f/dx2^2).
Managed to figure it out, cheers!
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