The Copy(S) function duplicates the series $S$.

Note: If $T$ is defined by $T≔S$, then $S$ and $T$ refer to the same internal table in Maple. Although the current version of Maple does not permit the user to directly modify the internal structure of a series, this functionality could change in future versions. In that case, changing the structure of $S$ would change $T$.

$\mathrm{with}\left(\mathrm{OrthogonalSeries}\right)\:$

$S≔\mathrm{Create}\left(\frac{{\left(-1\right)}^n}{n!}\,\mathrm{ChebyshevT}\left(n\,x\right)\right)$

$S≔\sum _{n=0}^{\mathrm{\infty }}\frac{{\left(\mathrm{-1}\right)}^n\mathrm{ChebyshevT}\left(n\,x\right)}{n!}$

$T≔\mathrm{Copy}\left(S\right)$

$T≔\sum _{n=0}^{\mathrm{\infty }}\frac{{\left(\mathrm{-1}\right)}^n\mathrm{ChebyshevT}\left(n\,x\right)}{n!}$