* bug#66433: 30.0.50; Update astronomial length units in Calc
@ 2023-10-10 10:09 Ulrich Müller
2023-10-10 12:16 ` Eli Zaretskii
2023-10-10 12:29 ` Mattias Engdegård
0 siblings, 2 replies; 5+ messages in thread
From: Ulrich Müller @ 2023-10-10 10:09 UTC (permalink / raw)
To: 66433
OK to merge this to master?
From 44fcab5b4ec5e1175dd03e7c1b92e577ec689189 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ulrich=20M=C3=BCller?= <ulm@gentoo.org>
Date: Tue, 10 Oct 2023 11:58:03 +0200
Subject: [PATCH] Update astronomical length units in Calc
* lisp/calc/calc-units.el (math-standard-units): Update the
astronomical unit and the parsec, using their definitions by the
International Astronomical Union.
---
lisp/calc/calc-units.el | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/lisp/calc/calc-units.el b/lisp/calc/calc-units.el
index 988fef2fcd2..96cf0840d15 100644
--- a/lisp/calc/calc-units.el
+++ b/lisp/calc/calc-units.el
@@ -57,12 +57,14 @@ math-standard-units
( ft "12 in" "Foot")
( yd "3 ft" "Yard" )
( mi "5280 ft" "Mile" )
- ( au "149597870691. m" "Astronomical Unit" nil
- "149597870691 m (*)")
- ;; (approx) NASA JPL (https://neo.jpl.nasa.gov/glossary/au.html)
+ ( au "149597870700. m" "Astronomical Unit" nil
+ "149597870700 m")
+ ;; "149 597 870 700 m exactly"
+ ;; http://www.iau.org/static/resolutions/IAU2012_English.pdf
( lyr "c yr" "Light Year" )
- ( pc "3.0856775854*10^16 m" "Parsec (**)" nil
- "3.0856775854 10^16 m (*)") ;; (approx) ESUWM
+ ( pc "(648000/pi) au" "Parsec (**)")
+ ;; "The parsec is defined as exactly (648 000/π) au"
+ ;; http://www.iau.org/static/resolutions/IAU2015_English.pdf
( nmi "1852 m" "Nautical Mile" )
( fath "6 ft" "Fathom" )
( fur "660 ft" "Furlong")
--
2.42.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* bug#66433: 30.0.50; Update astronomial length units in Calc
2023-10-10 10:09 bug#66433: 30.0.50; Update astronomial length units in Calc Ulrich Müller
@ 2023-10-10 12:16 ` Eli Zaretskii
2023-10-10 12:29 ` Mattias Engdegård
1 sibling, 0 replies; 5+ messages in thread
From: Eli Zaretskii @ 2023-10-10 12:16 UTC (permalink / raw)
To: Ulrich Müller; +Cc: 66433
> From: Ulrich Müller <ulm@gentoo.org>
> Date: Tue, 10 Oct 2023 12:09:39 +0200
>
> OK to merge this to master?
>
> >From 44fcab5b4ec5e1175dd03e7c1b92e577ec689189 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Ulrich=20M=C3=BCller?= <ulm@gentoo.org>
> Date: Tue, 10 Oct 2023 11:58:03 +0200
> Subject: [PATCH] Update astronomical length units in Calc
>
> * lisp/calc/calc-units.el (math-standard-units): Update the
> astronomical unit and the parsec, using their definitions by the
> International Astronomical Union.
Yes, thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#66433: 30.0.50; Update astronomial length units in Calc
2023-10-10 10:09 bug#66433: 30.0.50; Update astronomial length units in Calc Ulrich Müller
2023-10-10 12:16 ` Eli Zaretskii
@ 2023-10-10 12:29 ` Mattias Engdegård
2023-10-10 13:02 ` Ulrich Mueller
1 sibling, 1 reply; 5+ messages in thread
From: Mattias Engdegård @ 2023-10-10 12:29 UTC (permalink / raw)
To: Ulrich Müller; +Cc: 66433
> - ( au "149597870691. m" "Astronomical Unit" nil
> - "149597870691 m (*)")
> - ;; (approx) NASA JPL (https://neo.jpl.nasa.gov/glossary/au.html)
> + ( au "149597870700. m" "Astronomical Unit" nil
Other units with exact definitions don't seem to use floats, so perhaps the dot should go?
> + "149597870700 m")
> + ;; "149 597 870 700 m exactly"
> + ;; http://www.iau.org/static/resolutions/IAU2012_English.pdf
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#66433: 30.0.50; Update astronomial length units in Calc
2023-10-10 12:29 ` Mattias Engdegård
@ 2023-10-10 13:02 ` Ulrich Mueller
2023-10-10 13:35 ` Mattias Engdegård
0 siblings, 1 reply; 5+ messages in thread
From: Ulrich Mueller @ 2023-10-10 13:02 UTC (permalink / raw)
To: Mattias Engdegård; +Cc: 66433
>>>>> On Tue, 10 Oct 2023, Mattias Engdegård wrote:
>> - ( au "149597870691. m" "Astronomical Unit" nil
>> - "149597870691 m (*)")
>> - ;; (approx) NASA JPL (https://neo.jpl.nasa.gov/glossary/au.html)
>> + ( au "149597870700. m" "Astronomical Unit" nil
> Other units with exact definitions don't seem to use floats, so
> perhaps the dot should go?
Good point. Commit updated and merged.
>> + "149597870700 m")
>> + ;; "149 597 870 700 m exactly"
>> + ;; http://www.iau.org/static/resolutions/IAU2012_English.pdf
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#66433: 30.0.50; Update astronomial length units in Calc
2023-10-10 13:02 ` Ulrich Mueller
@ 2023-10-10 13:35 ` Mattias Engdegård
0 siblings, 0 replies; 5+ messages in thread
From: Mattias Engdegård @ 2023-10-10 13:35 UTC (permalink / raw)
To: Ulrich Mueller; +Cc: 66433
10 okt. 2023 kl. 15.02 skrev Ulrich Mueller <ulm@gentoo.org>:
>> Other units with exact definitions don't seem to use floats, so
>> perhaps the dot should go?
>
> Good point. Commit updated and merged.
Excellent, and thank you for doing this!
^ permalink raw reply [flat|nested] 5+ messages in thread
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2023-10-10 10:09 bug#66433: 30.0.50; Update astronomial length units in Calc Ulrich Müller
2023-10-10 12:16 ` Eli Zaretskii
2023-10-10 12:29 ` Mattias Engdegård
2023-10-10 13:02 ` Ulrich Mueller
2023-10-10 13:35 ` Mattias Engdegård
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