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CHEBY

The CHEBY(x,x0,a0,…,an) function returns the value of an nth order Chebyshev polynomial of the first kind.
You can define up to a 30th order polynomial.

Format

CHEBY(x,x0,a0,…,an)

Arguments

x
The independent variable.
You can enter a valid expression for the independent variable such as 2*TIME.
x0
The constant offset of the independent variable.
a0,…,an
A set of polynomial coefficients.

Function Definition

CHEBY(x,x0,a0,…,an) = 
     a0 + Σj=1 … n aj*Tj(x-x0)
where 
     T1(x-x0) = x-x0
     Tj(x-x0) = 2*(x-x0)*Tj-1(x-x0)*Tj-2(x-x0)
Parent topic: Supported Functions


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