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minimax polynomial determination

• To: mathgroup at smc.vnet.net
• Subject: [mg115672] minimax polynomial determination
• From: Leslaw Bieniasz <nbbienia at cyf-kr.edu.pl>
• Date: Tue, 18 Jan 2011 05:48:21 -0500 (EST)

Hi,

I need to determine minimax polynomial approximations to a certain
function computed using MATHEMATICA. Unfortunately it is not possible
to calculate exact derivatives of the function. Is there any way to use
the MiniMaxApproximation[] algorithm with numerically approximated
derivatives? I would appreciate an example.

Leslaw