User-defined Functions (10/28) Optional Arguments Many MATLAB functions support optional input arguments and output arguments,such as plot,max. How do MATLAB functions know how many input and output arguments are present,and how do they adjust their behavior accordingly? There are 8 special functions that can be used by MATLAB functions to deal with the optional arguments and to report errors in those arguments.Here we will introduce6 of them and the remaining 2 will be introduced in the following lessons. 同濟大学 AW TONGJI UNIVERSITY  Many MATLAB functions support optional input arguments and output arguments, such as plot, max.  How do MATLAB functions know how many input and output arguments are present, and how do they adjust their behavior accordingly? There are 8 special functions that can be used by MATLAB functions to deal with the optional arguments and to report errors in those arguments. Here we will introduce 6 of them and the remaining 2 will be introduced in the following lessons. User-defined Functions (10/28) Optional Arguments