chepol¶

Chebychev polynomial

Calling Sequence¶

[Tn]=chepol(n,var)

:n integer : polynomial order : :var string : polynomial variable : :Tn polynomial in the variable var :

Recursive implementation of Chebychev polynomial. Tn=2*poly(0,var)*chepol(n-1,var)-chepol(n-2,var) with T0=1 and T1=poly(0,var).

chepol(4,'x')