MATLAB: How do i create a code which calculates the sum of number from 1 to x

Question

Create a function, which calculates the sum of numbers from 1 to x. You will need to use a while loop, Also how could i Add to the code so that the function also displays if the number is odd or even PS using hole integers

Answer 1

function y=whileSum(x)
sum=0;count=0;
while count<=x
   sum=sum+count
   count=count+1;
end
y=sum;

and call it from command line as

whileSum(9)

and the result will be

45