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Author Topic: Mtgox using single precision float for bitcoin?  (Read 1715 times)
gmaxwell
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June 03, 2011, 06:25:56 AM
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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...

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Astro
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June 03, 2011, 07:00:54 AM
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yikes
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June 03, 2011, 07:34:16 AM
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This doesn't fill me with confidence.

Me either... why wouldn't they use double precision?
cdhowie
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June 03, 2011, 07:40:46 AM
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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.

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