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xxwesley0204

Sun Oct 28, 2012 6:42 am


need some help with IF

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can anyone tell me how to make if be like


if _____(something) = ????????（odd number) then
elsif ________ = ???????(even number) then


how do i do that?


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[Gandalf]

Sun Oct 28, 2012 7:16 am


RE:need some help with IF

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Look into Turing's mod operator in the help documentation.  The mod (modulo) operator finds the remainder after a division of two numbers.  For example, 5 modulo 2 will give 1.

Now, what makes a number even?  What makes a number odd?

You can combine these two things to solve your problem.


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xxwesley0204

Sun Oct 28, 2012 8:28 am


RE:need some help with IF

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what do i do if i want to put it like this



loop
    locate (11, 27)
    put "If you are a male, enter 1"
    locate (12, 27)
    put "If you are a female, enter 2"
    locate (13, 26)
    put " " ..
    get gender

    if gender = "1" then
        cls
    elsif gender = "2" then
        cls
    else
        cls
        locate (11, 26)
        put "This gender does not exist."
        locate (12, 26)
        put "Please enter your gender again."
        locate (13, 25)
        put " " ..
        get gender
        cls
        exit when gender = "1"
        exit when gender = "2"
    end if
end loop




i want to add something like：
after this  i want to put
 if gender = (odd) then
put "mr"
if gender = (even) then
put "ms"

can u show me how to do it?


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Aange10

Sun Oct 28, 2012 10:01 am


RE:need some help with IF

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Well, there is honestly a lot better ways of doing your problem.

But to answer your question:

What Gandalf was hinting at earlier was that you can find out if a number is even or odd using a bit of math. Now what mathematically makes a number even? If it's divisible by two. And what makes a number odd? If it's not divisible by two.

The modulo operation will divide the second number into the first one (5 mod 2 = 5/2) and then give you the remainder (5 mod 2 = 2 remainder 1. Output is 1).

So if you want to find out if a number is even, you mod it by 2 and if there is no remainder it's even. Now how can you tell if it's odd?


FYI: In your program your numbers are held in strings so you may need to use ints or use the strint() command to turn them into ints.


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chipanpriest

Wed Oct 31, 2012 7:13 pm


RE:need some help with IF

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If gender = 1 then
put "Mr."
elseif gender = 2 then
put "Mrs."


Why can't you just do that?