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Re: Is Roblox's gravity 196.2 or is that in estimate?

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AstroCode is not online. AstroCode
Joined: 09 Oct 2009
Total Posts: 1122
15 Feb 2016 11:42 AM
I'm trying to make my physics cannon as accurate as possible. Is 196.2 what Roblox uses for gravity or is that an estimate?


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powerhotmail123 is not online. powerhotmail123
Joined: 11 Apr 2011
Total Posts: 5041
15 Feb 2016 11:44 AM
Many people use :GetMass() * 196.2 or something like that, so yeah, I think so.

Enjoying your stay at the Scripters Forum? Join this! http://www.roblox.com/My/Groups.aspx?gid=2582784
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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 11:44 AM
Supposedly, dead-on accurate. Of course, if that is what it is, then it is not entirely accurate because computers don't support 196.2 as a number.


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foreverpower is not online. foreverpower
Joined: 05 Feb 2011
Total Posts: 5578
15 Feb 2016 12:10 PM
^
What are you talking about?
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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 12:12 PM
196.2 in binary is
11000100.̅0̅0̅1̅1 (Repeating infinitely)

So of course, it can't be 100% accurate since computers do not support it.


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foreverpower is not online. foreverpower
Joined: 05 Feb 2011
Total Posts: 5578
15 Feb 2016 12:13 PM
yes they do
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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 12:13 PM
No, because it can't be represented by computers.


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foreverpower is not online. foreverpower
Joined: 05 Feb 2011
Total Posts: 5578
15 Feb 2016 12:14 PM
yes they can u idiot
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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 12:15 PM
Did you not read? 0.2 does not go evenly into binary.


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Ripepperoni is not online. Ripepperoni
Joined: 04 Jul 2010
Total Posts: 5715
15 Feb 2016 12:15 PM
yeah it works perfectly you will get a 0grave affect with that number
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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 12:22 PM
If you go from single precision to double precision with 196.2, you get 196.1999969482422, which is obviously NOT perfectly representable.


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adzz123 is not online. adzz123
Joined: 11 Jun 2011
Total Posts: 260
15 Feb 2016 12:24 PM
Jarod's right, again.


There are 10 types of people in this world. Those that understand binary and those that don't.
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bosswalrus is not online. bosswalrus
Joined: 04 Jan 2013
Total Posts: 5430
15 Feb 2016 12:25 PM
floating point
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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 12:28 PM
"Jarod's right, again"
And then cntkillme has a serious talk with me about "ego", mine being bigger and more volatile than the Hindenburg.


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AstroCode is not online. AstroCode
Joined: 09 Oct 2009
Total Posts: 1122
15 Feb 2016 12:33 PM
I have more math-y stuff for you guys if you want.

What type of function is this and what is its general equation?

http://prntscr.com/a3nz61


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AstroCode is not online. AstroCode
Joined: 09 Oct 2009
Total Posts: 1122
15 Feb 2016 12:37 PM
NVM I got it. The equation of that line was about 15 * math.sqrt(x)


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128Gigabytes is not online. 128Gigabytes
Joined: 17 Apr 2014
Total Posts: 3616
15 Feb 2016 12:40 PM
Filtered
pastebin

F0xK7hf8
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LegendaryAccount is not online. LegendaryAccount
Joined: 02 Jun 2010
Total Posts: 13193
15 Feb 2016 12:47 PM
print(.1+.2 == .3) --false



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foreverpower is not online. foreverpower
Joined: 05 Feb 2011
Total Posts: 5578
15 Feb 2016 12:48 PM
u r dumb .1 + .2 is .3
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TaskScheduler is not online. TaskScheduler
Joined: 14 May 2013
Total Posts: 497
15 Feb 2016 12:49 PM
It's even man, decimals are 100% accurate up to 16 places or something.
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LegendaryAccount is not online. LegendaryAccount
Joined: 02 Jun 2010
Total Posts: 13193
15 Feb 2016 12:51 PM
nice b8 m8 4ever^


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JarodOfOrbiter is not online. JarodOfOrbiter
Joined: 17 Feb 2011
Total Posts: 20029
15 Feb 2016 12:51 PM
Are you really trolling? You troll here, you troll on the 2^YourUserId thread, you troll about FilteringEnabled being worthless... Yeah, I'm ignoring you henceforth. I need a plugin that deletes posts from people who troll. That would be cool.


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TaskScheduler is not online. TaskScheduler
Joined: 14 May 2013
Total Posts: 497
15 Feb 2016 12:56 PM
You said FE is useless too dude, it's not worthless it's just not worth it alot of the time.
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0xBAADF00D is not online. 0xBAADF00D
Forum Moderator
Joined: 18 Nov 2015
Total Posts: 483
15 Feb 2016 01:06 PM
196.18
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0xBAADF00D is not online. 0xBAADF00D
Forum Moderator
Joined: 18 Nov 2015
Total Posts: 483
15 Feb 2016 01:09 PM
Also, Jarod, you should read up on IEEE 754. It's a standard that almost every computer uses for floating point numbers. Binary doesn't have a fractional part.
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