
A command to transform the selected ChebyshevSeries object into a Polynomial object.
We find polynomial coefficients c_{k} such that
Σ_{k=1..numberOfCoefficients} c_{k} x^{k} = Σ_{k=1..numberOfCoefficients} l_{k} T_{k}(x) 
We use the recurrence relation for Chebyshev polynomials to calculate these coefficients.
© djmw, June 20, 1999