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: fastsumS2.m
    path of file: ./repos/nfft/applications/fastsumS2
    
    the code of the file until where you have to start completion: function fastsumS2()
%FASTSUMS2
%
%   Copyright (c) 2002, 2017 Jens Keiner, Stefan Kunis, Daniel Potts

% Copyright (c) 2002, 2017 Jens Keiner, Stefan Kunis, Daniel Potts
%
% This program is free software; you can redistribute it and/or modify it under
% the terms of the GNU General Public License as published by the Free Software
% Foundation; either version 2 of the License, or (at your option)
    
function
return;


function s = texFormat(d)
% TEXFORMAT Output positive numbers in TeX verbatim font style
%   TEXFORMAT(d) converts any number d > 0 to a string in TeX verbatim
%   font style. The number is converted into scientfic format with one decimal
%   digit precision. If d <= 0 a dash in Tex verbatim font style is returned in
%   place of the number.

% Check if number is greater zero.
if d > 0

  % Convert number to TeX verbatim font style and scientif format.
  s = sprintf('\\verb#%.1E#',d);

else

  % Return a dash in TeX verbatim font style.
  s = '\verb#-#';

end