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function [w, xmu] = ultrwin (m, mu, par, key, norm)
//This function returns the coefficients of an Ultraspherical window.
//Calling Sequence
//w = ultrwin (m, mu, par)
//w = ultrwin (m, mu, par, key)
//w = ultrwin (m, mu, par, key, norm)
//[w, xmu] = ultrwin (...)
//Parameters
//m: positive integer value
//mu:
//par:
//key:
//norm:
//Description
//This is an Octave function.
//This function returns the coefficients of an Ultraspherical window of length m supplied as input, to the output vector w.
//The second parameter controls the ratio between side lobe to side lobe of the window's Fourier transform.
//The third parameter controls the ratio between main lobe width to side lobe. The default value is beta.
//The value of xmu is also returned for given beta, att or latt.
//Examples
//ultrwin(3,-0.4,0.5)
//ans =
// - 1.
// 1.
// - 1.
rhs = argn(2)
lhs = argn(1)
if(rhs<3 | rhs>5)
error("Wrong number of input arguments.")
end
select(rhs)
case 3 then
if(lhs==1)
[w] = callOctave("ultrwin", m, mu, par)
elseif(lhs==2)
[w,xmu] = callOctave("ultrwin", m, mu, par)
end
case 4 then
if(lhs==1)
[w] = callOctave("ultrwin", m, mu, par, key)
elseif(lhs==2)
[w,xmu] = callOctave("ultrwin", m, mu, par, key)
end
case 5 then
if(lhs==1)
[w] = callOctave("ultrwin", m, mu, par, key, norm)
elseif(lhs==2)
[w,xmu] = callOctave("ultrwin", m, mu, par, key, norm)
end
end
endfunction
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