Re: [boost] Re: Date iterators in Boost Date-Time

From: John Fuller (jfuller_at_[hidden])
Date: 2003-08-18 06:34:35

HL7 v3, a health care application layer specification, uses the term 
with time intervals as
an operation on a totally ordered set that produces the smallest 
interval that is a superset.
For example, hull({[1,5], [7,10]}) == [1,10]
The unabridged specification part II available on Dr. Schadow's page 
http://aurora.regenstrief.org/v3dt/
gives nice examples.

On Sunday, August 17, 2003, at 05:13 PM, Paul A. Bristow wrote:

> But as Michael Caine said "Not a lot of people know that" - so I trust 
> you will
> explain what it does too for the benefit of us mere non-mathematical 
> mortals!
>
> Paul
>
>
>
> | -----Original Message-----
> | From: boost-bounces_at_[hidden]
> | [mailto:boost-bounces_at_[hidden]]On Behalf Of 
> gmelquio_at_[hidden]
> | Sent: Sunday, August 17, 2003 7:11 AM
> | To: Boost mailing list
> | Subject: Re: [boost] Re: Date iterators in Boost Date-Time
> |
> |
> | En réponse à Jeff Garland <jeff_at_[hidden]>:
> |
>
> | I just wanted to mention that the interval library names this
> | operation "hull".
> | It is a mathematically defined term since the operation is indeed a
> | convex hull.
> |
> | Just my two eurocents,
> |
> | Guillaume
> |
>
> _______________________________________________
> Unsubscribe & other changes: 
> http://lists.boost.org/mailman/listinfo.cgi/boost
>