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# How do I generate INT even numbers only **SOLVED**

• 7 posts
• Hi

I am working with the formula int(random(0,64)) for example,

but

I would like only even numbers to be generated.

Anyone out there know the equation that will work in C2?

I have already installed a 'Brute Force' correction method via

comparing two values and upping by one the number if an odd value is generated

for example::: if YYYY equals 7 add 1

this means

for the above int(random(0,64)), I need 32 checks to correct for an odd number.

I was wondering if there was a actual formula that generates only Even numbers?

Thanks for looking.

• Even number means it can be divided by 2

So...

2*floor(random(32)

32*2 is 64 that is why.

attached is a repeat 100 to see if it works???

[attachment=0:3fcbkwy5][/attachment:3fcbkwy5]

0*2 0

1*2 2

2*2 4

3*2 6

4*2 8

etc

31*2 62

32*2 64

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• 2*floor(random(32)

Thanks DUTOIT that works.

2*floor(random(32)

I never heard of floor being used before, so I googled it.

Wikipedia:

In mathematics and computer science, the floor and ceiling functions map a real number to the largest previous or the smallest following integer, respectively. More precisely, floor(x) = \lfloor x\rfloor is the largest integer not greater than x and ceiling(x) = \lceil x \rceil is the smallest integer not less than x.[1]

Again Thanks.

• I never heard of floor being used before, so I googled it.

Yeah, it pretty much rounds it up or down to whole number.

oops, forgot to close the bracket 2*floor(random(32))

• Yeah, it pretty much rounds it up or down to whole number.

I thought floor rounded the number down?

Is it different in Construct?

• >

>

> Yeah, it pretty much rounds it up or down to whole number.

>

>

>

I thought floor rounded the number down?

Is it different in Construct?

Lol, you are a 100% right... my bad

exctract C2

[quote:1q6iuy46]floor(x) Round down x e.g. floor(5.9) = 5

I was thinking round which is better to use in most cases... agggh! long day

Sidenote:

==========================================================================

Edit, for general info: I said most cases, here is why I went for floor:

Range---------floor() -------- round()

[0, 1)--------------0 ------------- 0 or 1 [1, 2)-------------- 1 -------------- 1 or 2 [2, 3)-------------- 2 -------------- 2 or 3 ... -------------- ... -------------- ... [9, 10) -------------- 9 -------------- 9 or 10 It is was more predictable
• Again Thanks. MUCH Appreciated

• 7 posts