Help with symbolic variables

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Tom
Tom 2014-3-6
Hello,
I have the following to calculate associated legendre polynomials (in terms of angles: http://en.wikipedia.org/wiki/Associated_legendre_polynomials#Reparameterization_in_terms_of_angles)
%Calculating associated legendre polynomials %Using Rodriguez formula
syms z theta
m = 0;
l = 0;
for i = 1:10
Pl(i,:) = (inv((2^l)*factorial(l)))*diff(((z^2 - 1)^l),l);
Plm(i,:) = ((-1)^m)*((sin(theta))^m)*diff(Pl(i,:),m);
Plm(i,:) = subs(Plm(i,:), z, cos(theta));
l = l + 1;
end
I am struggling to find the way to replace the symbolic variable theta with a vector containing numerical values.
Any help would be greatly appreciated.
Tom

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