MATLAB: Help with symbolic variables

symbolicvariables

Sorry, reposting this question again to see if any of you kind folk can help.
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

Best Answer

Tom, do you mean something like
 Plm_vec(i,:) = subs(Plm(i,:),{theta},{[pi/4, pi/5, pi/6]});
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