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Chin		#1 Posted : 24 August 2010 02:00:11(UTC)
Rank: Newbie Groups: Registered Joined: 24/08/2010(UTC) Posts: 1 Location: New Zealand		Could I ask if there is a way to choose a preferred unit after the program has calculated it? For eg. the default unit for force is in Newtons ('N). If we wish for this to be displayed as kiloNewton (ie., kN) - how should I do this? Thanks.
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Andrey Ivashov		#2 Posted : 24 August 2010 02:28:23(UTC)
Rank: Administration Groups: Developers, Registered, Knovel Developers, Administrators, Advanced Member Joined: 11/07/2008(UTC) Posts: 1,616 Was thanked: 1978 time(s) in 666 post(s)		Hello Chin! From the Units implementation topic: Best regards, Andrey Ivashov.
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matteob8		#3 Posted : 07 September 2010 20:38:59(UTC)
Rank: Newbie Groups: Registered Joined: 04/09/2010(UTC) Posts: 3 Location: Pordenone		"Unit" it's a great feature: they are everywhere in my job But I've a little issue: how can SMath understand when I want to express a Moment instead of an Energy? e.i. I need N*m instead Joule J. Thanks again for this cool software!
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omorr		#4 Posted : 07 September 2010 22:01:09(UTC)
Rank: Administration Groups: Registered, Advanced Member Joined: 23/06/2009(UTC) Posts: 1,740 Was thanked: 318 time(s) in 268 post(s)		Hello, matteob8 wrote: But I've a little issue: how can SMath understand when I want to express a Moment instead of an Energy? e.i. I need N*m instead Joule J. I did not quite understand, sorry. Do you actually want insted of J every result to give you N*m ?. What's wrong with the explanation Andrey gave in the previous post - with the picture included - how to change the unit of the result?. Just change J into N*m. You might even define a new, say, Nm unit like 'Nm:='N*'m or 'Nm:='J and every J unit replace with Nm unit. Regards, Radovan Edited by user 07 September 2010 22:09:38(UTC)  | Reason: Not specified
		When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
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matteob8		#5 Posted : 07 September 2010 23:09:22(UTC)
Rank: Newbie Groups: Registered Joined: 04/09/2010(UTC) Posts: 3 Location: Pordenone		Thanks Radovan for the prompt reply! I know: it's a subtle question. J and N*m seem equals but they are quite different: the first referes to energy, the second to an applied load. Maybe the following link could clarify the concept: http://en.wikipedia.org/wiki/Newton_metre In the above link they suggest to use J/rad as an alternate unit for torque but it seems that doesen't work on SMath. How can I solve this issue? Thanks for the patience. Regards, Matteo.
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maweilian		#6 Posted : 07 September 2010 23:40:39(UTC)
Rank: Advanced Member Groups: Registered Joined: 09/01/2010(UTC) Posts: 102 Location: Oregon, USA Was thanked: 5 time(s) in 5 post(s)		A picture is worth a thousand words: click on the placeholder on the right and press the apostrophe " ' " to insert a unit: type in "N * m" (use the dynamic help to make sure you are using the predefined units): that should give you the units you desire: Edited by user 07 September 2010 23:42:46(UTC)  | Reason: Not specified
		Will Massie Mechanical Engineer Oregon, USA
1 user thanked maweilian for this useful post.		on 09/09/2010(UTC)
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matteob8		#7 Posted : 08 September 2010 01:07:50(UTC)
Rank: Newbie Groups: Registered Joined: 04/09/2010(UTC) Posts: 3 Location: Pordenone		Yes! It's what I was looking for! Thank you Will! Sorry if bothered you guys, I'd never thought that the solution would be so simple. Br, Matteo.
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JuanMa_arg		#8 Posted : 29 September 2019 01:17:24(UTC)
Rank: Member Groups: Registered Joined: 29/09/2019(UTC) Posts: 14 Location: Mendoza		Hello, I would like to consult you                                                 I define a temperature in degrees Centigrade, when I call it it looks like Kelvin degrees and then I can't make a sum because it tells me they are two different units. How can I do so that the defined temperature is maintained in every calculation in the unit that defined it? Attached image capture of the problem. Thank you
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omorr		#9 Posted : 29 September 2019 10:22:37(UTC)
Rank: Administration Groups: Registered, Advanced Member Joined: 23/06/2009(UTC) Posts: 1,740 Was thanked: 318 time(s) in 268 post(s)		Hello, There are many posts on the Forum about handling tempereture units. See for example this one. Regards, Radovan
		When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
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1 user thanked omorr for this useful post.		on 29/09/2019(UTC)
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Jean Giraud		#10 Posted : 29 September 2019 13:46:27(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Smath Unit System is ISO, °C is not ISO. Define your user unit. If user unit is not '1', don't multiply input by user.
1 user thanked Jean Giraud for this useful post.		on 29/09/2019(UTC)
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Jean Giraud		#11 Posted : 29 September 2019 15:37:54(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Visit Colebrook, suggestive how to carry Engineering projects. And recover units in the results. Each project is specific. Please, feel free to attach your project for more doctoring. Inst_Colebrook Pipe Data.sm (62kb) downloaded 10 time(s).
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JuanMa_arg		#12 Posted : 29 September 2019 17:30:41(UTC)
Rank: Member Groups: Registered Joined: 29/09/2019(UTC) Posts: 14 Location: Mendoza		thanks to everyone!
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Jean Giraud		#13 Posted : 29 September 2019 23:11:19(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: JuanMa_arg thanks to everyone! ... too much stuff is missing
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Jean Giraud		#14 Posted : 30 September 2019 01:03:50(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: Jean Giraud ry practice ignoring unit system. Only OK for baby stuff: 2*2=4m²
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Jean Giraud		#15 Posted : 30 September 2019 04:06:13(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		The difference operator is often useful.
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