Matlab should use the first function on the path with the matching name, shouldn't it?
All of those method that are listed are object functions, which are priority 7
Functions elsewhere on the path, in order of appearance are priority 11.
When you addpath that directory, the gamma there becomes the only regular function on the search path with name gamma . The other gamma are only invoked if one of the parameters is the correct data type -- and if the parameters are the correct datatype then those have higher priority than the function you added on the path.
Why does MATLAB list the path first before the methods? I do not know -- but that does not affect resolution priority. The path is not searched until after it is determined that the function call is not an object method for class of the parameters.
