Simple use of MATLAB

Definition and call of function file
● Definition of function file

function  Output parameter table = Function name （ Input parameter table ）
 Note description section 
 Function body statement 

Such as ：

function[s,p]=fcircle(r)
s=pi*r*r;
p=2*pi*r;

notes ： The file name should be consistent with the function name
● Call of function file

[ Output argument table ]= Function name [ Input argument table ]

Such as ：

[s,p]=fcircle(10)