function area = calcarea(rad) ↑ Error: Function definitions are not permitted in this context.

Hello to all.

I am new to MATLAB and learning from a Book.

I typed this code from Book and save the file as calcarea.m

function area = calcarea(rad)
    area = pi*rad*rad;
end

But i am getting this error when I select 'evaluation selection'- "Function definitions are not permitted in this context''.

But when run it i get this error

 calcarea
Not enough input arguments.
Error in calcarea (line 2)
    area = pi*rad*rad;
Please help me to remove this error

Thanks in advance

Answer 1

[darova]

See this simple solution

Answer 2

[Sudipto Dutta]

function area = calcarea(rad)

area = pi*rad*rad;

end