If you want to write efficient code that is easy to debug, read my answer below. If you wish to use eval to assign values to variables (for some reason beginners often want to do this), then read these first:
A much better solution is to convert the data into a structure:
>> VarVal = [1,2,3];
>> VarNam = {'A','B','C'};
>> V = vertcat(VarNam,num2cell(VarVal));
>> S = struct(V{:});
>> S.A
ans = 1
>> S.C
ans = 3
See, MATLAB is simple once you stop using awful eval.
