Matlab Function : error

I want to run this function so I can test with any number

function[Young,TotalPerimeter] = YoungJay(Width, Area)  %line 1

Young=(Area/Width)-0.25;  %line3
TotalPerimeter= 2*((Area/Width)-0.25)+Width+sqrt(2)*Width;

end

error message on command window

Not enough input arguments.

Error in YoungJay (line 3)

Young=(Area/Width)-0.25;

Answer 1

[Walter Roberson]

You cannot run that code just by pressing the green run button in the editor, and you cannot run that code just by invoking the function name. If you were to try to do either one of those, then MATLAB would not know what values to use for the input arguments Width and Area.

When you run a function, MATLAB never looks in your current workspace for variables with the same name as the input parameters. For example,

Width = 7
Y = YoungJay

then MATLAB will never see that function has an input named Width and so look in the calling environment to see if a Width exists there to use.

When you want a function to use a parameter, you need to pass in the parameter when you invoke the function. For example, either of

Width = 7
Area = 19
Y = YoungJay(Width, Area)

or

Y = YoungJay(7, 19)

[YOUNGJUN Park]

I kind of understand what you are saying but can you show me how exactly code need to be changed?

[YOUNGJUN Park]

I invoked the code , YoungJay(6,80) , yes it echoes some value but I don't understand what this value is; I expected two outputs 1. Young , 2. TotalPerimeter

[Walter Roberson]

[Young, TotalPerimeter] = YoungJay(6,80)