Is Perfect TURING

[nasur27]

What is it you are trying to achieve?
I am trying to make a program that displays a message if a positive integer is a perfect square or not


What is the problem you are having?
my program almost works like if u input 6, it will display that has a perfect square but its not always that accurate with other numbers and i think i just did trial and erro

Turing:

procedure IsPerfect     %Declare the variables     var number : int     var sum : int     %Ask the user what the number is     put "What is the number?"     get number     for i : 1 .. number - 1         if number mod i = 0 then             sum := i + i         end if     end for     %Display if it is a perfect or not a perfect number     if sum = number then         put "The number is a perfect number"     else         put "The number is not a perfect number"     end if     %End the procedure end IsPerfect IsPerfect

Please specify what version of Turing you are using
<Answer Here>

[mirhagk]

perfect squares is something different than this. A perfect square is something that's square root is a whole number.

I'm assuming this is a number that has the same number of factors as it's value itself? Then this program should work fine.

[Tony]

nasur27 @ Thu Jan 26, 2012 9:50 pm wrote:

like if u input 6, it will display that has a perfect square

What integer, when multiplied by itself, will result in 6?

[mirhagk]

Well what was the question being asked, by perfect number do you mean perfect squares?

[Dreadnought]

Just looking at the code, I'd say he's actually talking about perfect numbers, (6 is a perfect number). These are numbers which are equal to the sum of all their factors (not including themselves).

ex : 6 = 1 + 2 + 3
28 = 1 + 2 + 4 + 7 + 14
(There are tow more less than 10000)

The problem I seem is that you haven't set an initial value for sum, and that you let sum be equal to i+i instead of incrementing the value of sum by i.

This works for 6 since, the largest factor less than 6 is 3 and 3+3 =6, But you will notice that this will also work for any multiple of two.