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October 1st, 2016, 03:36 AM   #1
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Linearize multivariate function using minimax (L∞ approximation) method

I have a multivariate function let's say $\displaystyle f(x,y,θ)=x+y+cos(θ)f(x,y,θ)=x+y+cos⁡(θ)$. In Taylor expansion it becomes a Jacobian matrix (3 x 3); but in the case of a minimax approximation, how can I linearize this function? Thanks in advance.
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