355.M3

4. Show a partial function that calculate the sum of all positive even integers less than n. 5. Is this function a partial function or a total function on the integers? On what interval or integer values is the function defined? and where is undefined? f(x) = if r = 0 then 0 else f (22-4) 4. Show a partial function that calculate the sum of all positive even integers less than n. 5. Is this function a partial function or a total function on the integers? On what interval or integer values is the function defined? and where is undefined? f(x) = if r = 0 then 0 else f (22-4)