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RF Design and Analysis
by Jackson Harvey A collection of functions, scripts, & Simulink models useful for designing and analyzing RF systems
chebpoly(N,X)
% CHEBPOLY Evaluate Chebyshev polynomial
%
% [Y]=CHEBPOLY(N, X) Evaluates the Nth Chebyshev polynomial at X
function Y = chebpoly(N,X)
X = X(:).';
T(1,:) = X;
T(2,:) = 2.*X.^2 - 1;
for num = 3:N
T(num,:) = 2.*X.*T(num-1,:)-T(num-2,:);
end;
Y = T(N,:);
