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From: Allen Li <darkfeline@felesatra.moe>
To: Noam Postavsky <npostavs@gmail.com>
Cc: Emacs developers <emacs-devel@gnu.org>
Subject: Re: Calc; Cannot add time units to date
Date: Thu, 22 Mar 2018 13:47:43 -0700	[thread overview]
Message-ID: <CADbSrJwnbgTDcwWeccP+wMjzebYk6Ugc6by0JHAAQi80KmF6dA@mail.gmail.com> (raw)
In-Reply-To: <CAM-tV--tkaXLvVmCdH139Gh1_scTy7dy+w_GZjhOZufBvNO8_g@mail.gmail.com>

That's because hour is not a time unit.  hr is a time unit:

1.5 hr + 0.5 hr = 2. hr
1.5 hr + 30 min = 2. hr

(You need to press u s to simplify the units for the second example,
but this does nothing for the date arithmetic that is the subject of
this bug report.)

On Thu, Mar 22, 2018 at 1:16 PM, Noam Postavsky <npostavs@gmail.com> wrote:
> On 22 March 2018 at 13:38, Allen Li <darkfeline@felesatra.moe> wrote:
>> On Thu, Mar 22, 2018 at 2:36 AM, Robert Pluim <rpluim@gmail.com> wrote:
>>>
>>> Hmm, Iʼm not convinced thatʼs meant to work. Could you point me at a
>>> section of the Calc manual that describes that?
>>
>> It's not in the manual, but I expected that it would work.  Is it
>> unreasonable to expect to be able to add time units to dates?
>
> I think the point is that 1.5hr is not a time unit from Calc's point of view.
>
> 1.5hr + 1.5hour doesn't add together either.



  reply	other threads:[~2018-03-22 20:47 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-22  8:36 Calc; Cannot add time units to date Allen Li
2018-03-22  9:36 ` Robert Pluim
2018-03-22 17:38   ` Allen Li
2018-03-22 20:16     ` Noam Postavsky
2018-03-22 20:47       ` Allen Li [this message]
2018-03-23  8:32         ` Robert Pluim
2018-03-23  8:41           ` Noam Postavsky

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