Question

Write a function called mysum that sums the first n positive numbers. Give the result x1 for n=20,and the result x2 for n=100.

Matlab code

Answer 1

Always save function file using function name

Here given code is save by mysum.m

code of function

function sum = mysum(n)
   
    if(n>0)
        sum=0;
        for i=1:n
            sum=sum+i;
        end
       
    else
        disp('not defined')
    end
       
           
end

Result