for i = 1:3
eval(['var_' int2str(i) ' = fcn(i);']);
end
But in general an easier approach is to store your outputs in a cell array instead of a bunch of variables:
outputArray = cell(1,3);
for i = 1:3
outputArray{i} = fcn(i);
end
This makes it much easier to access the data later since you can just index into the cell array to get its contents, whereas for the first approach you would likely have to reconstruct a variable name and use EVAL again later to access the data stored in a particular variable.
