28.3.1 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)

Brief Description

Chebyshev Series Polynomials

Sample Curve

Image010.gif

Parameters

Number: 6

Name: Meanings: Lower Bounds: Upper Bounds:

z_0

z offset

A_1

height

A_2

height

B_1

height

B_2

height

C_1

Script Access

Function File

fitfunc\Chebyshev2D.fdf