Chebyshev2D

Function

$z=z_0+A_1T_1\left( x\right) +B_1T_1\left( y\right) +A_2T_2\left( x\right) +CT_1\left( x\right) T_1\left( y\right) +B_2T2\left( y\right)$

Where: $-1\leq x\leq 1$ , $-1\leq y\leq 1$ ,

$T_n\left( x\right) =\cos \left( na\cos \left( x\right) \right)$

$T_n\left( y\right) =\cos \left( na\cos \left( y\right) \right)$

Chebyshev Series Polynomials

Number: 6

fitfunc\Chebyshev2D.fdf

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