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good chemistry is complicated, and a little bit messy -LW |
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Ah. My favorite here is the snap_units() function. There was a time when I was playing around with rounding fractions of stock shares -- to the nearest 1/8 or 1/16 value -- before the exchanges I was focused upon switched to arbitrary decimal representations of stock shares.
In the CB, tye suggested the following change in snap_units() to avoid potential rounding errors: from:
to:
The drawback is that for fractional cases, $units must be 1/N, where N is an integer. I'm not super clear on the potential rounding errors; nor am I clear on the potential utility of arbitrary $units. Perhaps certain people can elucidate for our edification. Matt P.S. For some prior discussion of this stuff, check out Fix floats like you do in your head. In reply to Re: Math::SnapTo
by mojotoad
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