[NTG-context] Re: Using Farad with \unit messes up feet, µ not recognised as prefix

2023-10-03 Thread Marco Patzer
On Tue, 3 Oct 2023 16:27:22 +0200
Marco Patzer  wrote:

> What about:
> 
> \unit{10 um}
> \unit{10 µm}
> 
> Can I assign µ to mean micro (prefix)?

Found it:

\registerunit [prefix] [µ=micro]

\starttext
  \unit{10 micro meter} \crlf
  \unit{10 µm}
\stoptext

Should this be the default (µ assigned to micro)?

Marco
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[NTG-context] Re: Using Farad with \unit messes up feet, µ not recognised as prefix

2023-10-03 Thread Marco Patzer
On Tue, 3 Oct 2023 15:42:57 +0200
Wolfgang Schuster  wrote:

> Marco Patzer schrieb am 03.10.2023 um 12:31:
> > Hi!
> >
> > I struggle using the unit Farad (unit of capacitance):  
> 
> The unit "farad" exists.

You're right \unit{10 Farad} works.

> The unit for feet is "foot" and "ft" is a combination of a prefix 
> (femto) and a unit (tonne).

Makes sense if you think about it. Never crossed my mind that ft not
meaning feet in this instance and also never contemplated the
existence of a “femto tonne”.

> You can list the individual parts in the log file with the 
> "physics.units" tracker.

That gives some insight, indeed. Thanks.

What about:

\unit{10 um}
\unit{10 µm}

Can I assign µ to mean micro (prefix)?

Marco
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[NTG-context] Re: Using Farad with \unit messes up feet, µ not recognised as prefix

2023-10-03 Thread Wolfgang Schuster

Marco Patzer schrieb am 03.10.2023 um 12:31:

Hi!

I struggle using the unit Farad (unit of capacitance):


The unit "farad" exists.


\starttext

%% prints 10 10 ft
\unit{10 F}
\unit{20 ft}

\registerunit  [F=Farad]
\setupunittext [Farad=F]

%% prints 10 F 20 F⋅t
\unit{10 F}
\unit{20 ft}

\stoptext

When registering Farad as new unit it messes up feet. This looks
like a bug to me, since “20 ft” does not contain a capital “F” and
units are case-sensitive. How to use Farad correctly without messing
up other units?


The unit for feet is "foot" and "ft" is a combination of a prefix 
(femto) and a unit (tonne).


You can list the individual parts in the log file with the 
"physics.units" tracker.


To get a short unit you have to use the following method (it works 
because farad exists):


    \registerunitshortcut [F=farad]

Wolfgang

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