MATLAB: Handles returning multiple outputs

function handleMATLAB

I have a function handle that returns 3 values.
 @f(x,y) = basis_handle(x,y);
 [z, dx, dy] = f(0.1,0.1) %returns 3 vectors
what I'd like to do now is create a function handle that performs a dot product of each of those 3 vectors with another vector. Something like:
 @f_2(x,y) c'*f(x,y) %c is a known vector, same size as ones returned by @f(x,y)
As it is, this handle returns only 1 value, even if I try to ask for more, i.e. this produces an error:
 [z, dx, dy] = f_2(0.1,0.1)
Is there any way to create a function handle that returns all 3 values as requested?

Best Answer

I do not see how to do this using purely anonymous functions, but if that is not a requirement you could simply create a new function like:
 function varargout=fevalndot(c,varargin)
 [x{1:nargout}]=feval(varargin{:});
 varargout=cellfun(@(x)c'*x,x,'uni',0);
 end
and then simply define a handle to this function:
 f_2 = @(x,y)fevalndot(c,f,x,y);
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