You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: fevalm.m
    path of file: ./repos/chebfun/@spherefun
    
    the code of the file until where you have to start completion: function varargout = fevalm(varargin)
% FEVALM   Evaluate a SPHEREFUN in spherical coordinates.
% 

    
function varargout = fevalm(varargin)
% FEVALM   Evaluate a SPHEREFUN in spherical coordinates.
% 
% Z = FEVALM(F, LAM, TH) returns a matrix of values Z of size
% length(TH)-by-length(LAM). (LAM,TH) are the spherical coordinates for the
% evaluation points on the sphere, with -pi <= LAM <= pi the azimuthal
% angle and 0 <= TH <= pi the elevation (polar) angle (both measured in
% radians). LAM and TH should be vectors of doubles. This is equivalent to
% making a meshgrid of the vectors LAM and TH and then using FEVAL to
% evaluate at that grid.

% Copyright 2017 by The University of Oxford and The Chebfun Developers.
% See http://www.chebfun.org/ for Chebfun information.

[varargout{1:nargout}] = fevalm@separableApprox(varargin{:});

end