The help function can be useful for getting quick assistance on a particular function. For most built-in MATLAB functions, a portion of the help text lists similar or related functions ("See also ...").
Given a function name (string), return a cell array of the "See also" functions provided in the help text. If the input is not a real function or if no similar/related functions exist, return an empty cell array. The output should be all lowercase and in the order shown in the help text.
Examples
seeAlso('sum') = {'prod','cumsum','diff','accumarray','isfloat'}
seeAlso('fake') = {};
The are more fucntions added to the "see also" of the function 'help' (maybe until the last release).
Update test suite
Test suite has been updated and solutions rescored. My apologies for the inconvenience.