When I try, open ('./helperRegisterImages. But when I tried sample code, I couldn't find these helper functions mentioned below (I am using Matlab R2023a.) helperVisualizeScene () helperBlendImages () helperRegisterImages () etc. The numerical values asssigned to variables are stored there and easily accessed by entering the variables' names at the MATLAB prompt. (Note different programming languages have different mechanisms for dealing with defaults.) There is also an nargout MATLAB function useful in tailoring the outputs provided. In this documentation and example, some helper functions are used. During a MATLAB session, the issued commands and the variables resulting from those commands are saved in the MATLAB workspace. In this regard, the MATLAB function isempty is useful (for nulls) and the MATLAB nargin is useful (for truncated argument lists) in order to detect any 'unset' inputs which must be assigned to default values.

However, in this case, it is important that within the function all inputs that will be encountered are defined.

Elementary math functions in matlab