Re: Random again
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 47461
interpreted = N
texte = on 2/4/03 7:18 PM, Tim Robinson at tim@idfk.com.au so noted...> A while ago there was some discussion about using [math]ceil([RANDOM > format=float]*(randomrange))[/math] to get a random number. We were just > trying this and came up with an anomaly: including the occasional negative > number!!! (and the negative number always is in the range -480 to -490ish.Mac OS X 10.2.3 WebDNA 4.5I'm seeing the same thing.It looks like every so often, [random format=float] kicks out a very small number that gets converted to scientific notation (like 3.62359e-05) and causes the large negative numbers in the calculation.Forcing the random number to a six-digit float is a kludge that gets around this.Change:ceil([random format=float]*99)To:ceil([format .6f][random format=float][/format]*99)If this is a WebDNA bug, I'll be doing some global search/replace with BBEdit tonight. : ( Rob Marquardt Designer/Resident Wirehead Toast Design800 Washington Avenue North Minneapolis MN 55401 612.330.9863 v 612.321.9424 f www.toastdesign.com ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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Associated Messages, from the most recent to the oldest:
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- Re: Random again (Rob Marquardt 2003)
- Random again (Tim Robinson 2003)
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on 2/4/03 7:18 PM, Tim Robinson at tim@idfk.com.au so noted...> A while ago there was some discussion about using [math]ceil([RANDOM > format=float]*(randomrange))[/math] to get a random number. We were just > trying this and came up with an anomaly: including the occasional negative > number!!! (and the negative number always is in the range -480 to -490ish.Mac OS X 10.2.3 WebDNA 4.5I'm seeing the same thing.It looks like every so often, [random format=float] kicks out a very small number that gets converted to scientific notation (like 3.62359e-05) and causes the large negative numbers in the calculation.Forcing the random number to a six-digit float is a kludge that gets around this.Change:ceil([random format=float]*99)To:ceil([format .6f][random format=float][/format]*99)If this is a WebDNA bug, I'll be doing some global search/replace with BBEdit tonight. : ( Rob Marquardt Designer/Resident Wirehead Toast Design800 Washington Avenue North Minneapolis MN 55401 612.330.9863 v 612.321.9424 f www.toastdesign.com ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Rob Marquardt
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