Scratch

Hyperbola · 2013-04-13 17:16:12

65536^3 ≠ 281474976710674
Seriously, try uploading a project that does 65536^3 and puts it in a variable. (It's actually 281474976710656.)

But that's what flash says. Offline scratch works much better, it goes accurately up to 10^60 or so, while the flash player only goes to 10^18. Could big number calculations in flash be improved?

(I guess this means my perlin noise doesn't work right)

technoguyx · 2013-04-13 17:33:52

Might have to do with how Flash handles floating point numbers.

Hyperbola · 2013-04-14 09:30:04

Bump.

bobbybee · 2013-04-15 13:18:14

On 2.0 it worked right for me hmm
How are computing the exponents? I'm doing 65536*65536*65536.

Hyperbola · 2013-04-15 17:57:14

I'm using 1.4's old flash player, checking in a bit.

KrIsMa · 2013-04-16 22:59:44

I think it is because you overflowed the variable:
a variable can go up to a certain number, like 2546274531 or something. Once it excedes that number, the number is then turned into weird numbers, like -0.565343435343545.

in this case, 35536^3 may have overflowed the variable.

Last edited by KrIsMa (2013-04-16 23:00:14)

KrIsMa · 2013-04-16 23:02:15

technoguyx wrote:
Might have to do with how Flash handles floating point numbers.

wait, how does 65536^3 have floating numbers?
isnt it all integers?

joefarebrother · 2013-04-18 11:19:49

KrIsMa wrote:
technoguyx wrote:
Might have to do with how Flash handles floating point numbers.
wait, how does 65536^3 have floating numbers?
isnt it all integers?

It's because the number is too big to represent as a binary integer so it represents it as a floating point. It takes the closest number to it that is in the form X * (2^Y)