Bitcoin Forum
June 23, 2018, 10:08:02 PM *
News: Latest stable version of Bitcoin Core: 0.16.1  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Mtgox using single precision float for bitcoin?  (Read 1801 times)
gmaxwell
Staff
Legendary
*
Offline Offline

Activity: 2436
Merit: 1201



View Profile
June 03, 2011, 06:25:56 AM
 #1

I put in a sell order for 1 BTC on MTGOX at 1e120, just to see what the limit was. The system now reports I have an open order at 3.40282e+38.

This doesn't fill me with confidence. Might make some of the weird rounding on orders I've heard people complain about in IRC make more sense...


Bitcoin will not be compromised
1529791682
Hero Member
*
Offline Offline

Posts: 1529791682

View Profile Personal Message (Offline)

Ignore
1529791682
Reply with quote  #2

1529791682
Report to moderator
The World's Betting Exchange

Bet with play money. Win real Bitcoin. 5BTC Prize Fund for World Cup 2018.

Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1529791682
Hero Member
*
Offline Offline

Posts: 1529791682

View Profile Personal Message (Offline)

Ignore
1529791682
Reply with quote  #2

1529791682
Report to moderator
1529791682
Hero Member
*
Offline Offline

Posts: 1529791682

View Profile Personal Message (Offline)

Ignore
1529791682
Reply with quote  #2

1529791682
Report to moderator
1529791682
Hero Member
*
Offline Offline

Posts: 1529791682

View Profile Personal Message (Offline)

Ignore
1529791682
Reply with quote  #2

1529791682
Report to moderator
Astro
Sr. Member
****
Offline Offline

Activity: 276
Merit: 250



View Profile
June 03, 2011, 07:00:54 AM
 #2

yikes
somestranger
Hero Member
*****
Offline Offline

Activity: 487
Merit: 500


Are You Shpongled?


View Profile
June 03, 2011, 07:34:16 AM
 #3

This doesn't fill me with confidence.

Me either... why wouldn't they use double precision?
cdhowie
Full Member
***
Offline Offline

Activity: 182
Merit: 100



View Profile WWW
June 03, 2011, 07:40:46 AM
 #4

Me either... why wouldn't they use double precision?
Why wouldn't they use fixed-point?  Floating point is for when you don't know how many decimal places you need.  With Bitcoin you know exactly how many you need; Mt. Gox should not use floating point at all.

Tips are always welcome and can be sent to 1CZ8QgBWZSV3nLLqRk2BD3B4qDbpWAEDCZ

Thanks to ye, we have the final piece.

PGP key fingerprint: 2B7A B280 8B12 21CC 260A  DF65 6FCE 505A CF83 38F5

SerajewelKS @ #bitcoin-otc
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!