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February 2005, Week 3

HP3000-L@RAVEN.UTC.EDU
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Subject:
Re: half an hour algorithm
From:
Greg Stigers <[log in to unmask]>
Reply To:
Greg Stigers <[log in to unmask]>
Date:
Sat, 19 Feb 2005 18:32:43 -0500
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> If HPMINUTE > 30 then you'd have to add some checking and math, something
> like
> and IF ... THEN ... ELSE check to subtract 30 from the minutes and add 1
> to the
> hour.
which is what I am trying to avoid having to do. I thought that maybe there
was some way to perhaps both add and subtract a value, and then take the
absolute value of the result, or something cunning like that. I want to
calculate once, not evaluate and then calculate, if you follow my meaning.
Again, best I've come up with is ((hour x 60) + 30) / 60 for the hour, and
mod ((hour x 60) + 30) 60 for the minutes.

Greg Stigers

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