Measurment units bug? - Can't add degreeC to the variable - Сообщения
#1 Опубликовано: 16.09.2021 11:16:28
Hello everyone!
I found some strange behaviour. Let's assume two dimensionless quantity length:=10 and temp:=12. Now I multiply length * 1m and the result is 10m. However if I multiply temp * 1degC the result is error because temp is not defined? Is it some kind of a bug?
https://ibb.co/B2203KY
I found some strange behaviour. Let's assume two dimensionless quantity length:=10 and temp:=12. Now I multiply length * 1m and the result is 10m. However if I multiply temp * 1degC the result is error because temp is not defined? Is it some kind of a bug?
https://ibb.co/B2203KY
#2 Опубликовано: 16.09.2021 11:50:22
Hello everyone!
I found some strange behaviour. Let's assume two dimensionless quantity length:=10 and temp:=12. Now I multiply length * 1m and the result is 10m. However if I multiply temp * 1degC the result is error because temp is not defined? Is it some kind of a bug?
https://ibb.co/B2203KY
I checked and it's really strange
#3 Опубликовано: 16.09.2021 12:09:36
Match units user style
#4 Опубликовано: 16.09.2021 12:14:59
Match units user style
Sorry, but that is not the problem we are talking about...
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fedeghi 17.09.2021 03:31:00
#5 Опубликовано: 16.09.2021 12:25:12
Sorry, but that is not the problem we are talking about...
#6 Опубликовано: 16.09.2021 12:34:28
why you type an additional "'" between temp and °C ?
It is enough to type: temp*'°C=
It is enough to type: temp*'°C=
#7 Опубликовано: 16.09.2021 12:48:50
why you type an additional "'" between temp and °C ?
To make the unit silent but responding.
Had been used/demonstrated ad nauseum.
Most useful in program, still conveying meaning.
#8 Опубликовано: 16.09.2021 13:10:58
To make the unit silent but responding.
It's a trickier way to make things work (why use this "trick" with Celsius Degrees but not with Meters?)
Had been used/demonstrated ad nauseum.
A little exaggerated affirmation...and not documented on common help documents (Interactive Guide, Handbooks, nor wiki)
#9 Опубликовано: 16.09.2021 14:39:43
It looks like a bug to me. Is there a chance that it will be fixed any time soon? What do you think? Will use "'" between temp and °C for now...
#10 Опубликовано: 16.09.2021 14:55:32
A little exaggerated affirmation...and not documented on common help documents (Interactive Guide, Handbooks, nor wiki)
The two you mention are little fraction of all Forum projects.
Silent unit is not documented as wellroot that works superb.
However, silent is coded ... otherwise would cry to murder !
I like you Oscar, take care ... Jean.
#11 Опубликовано: 16.09.2021 15:21:08
It looks like a bug to me. Is there a chance that it will be fixed any time soon? What do you think? Will use "'" between temp and °C for now...
Yep! I agree. I just reported the issue in bug section of the forum.
Regards!
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Porschaka 16.09.2021 15:50:00
#12 Опубликовано: 16.09.2021 15:56:33
A little exaggerated affirmation...and not documented on common help documents (Interactive Guide, Handbooks, nor wiki)
The two you mention are little fraction of all Forum projects.
Silent unit is not documented as wellroot that works superb.
However, silent is coded ... otherwise would cry to murder !
I like you Oscar, take care ... Jean.
The ‘silent unit’ is only mentioned by you only in 5 topics (this is only 5 or 6 posts) in the entire forum, and nobody discussed about it, so, here, in this forum, there is not enough documentation about it either there is not information about it on SMath Interctive Guide, SMath Handbooks, nor SMath Wiki
The ‘silent unit’ is not the question in this topic.
The issue originally mentioned by Porschaka looks like a bug, so it was reported in the corresponding section.
#13 Опубликовано: 16.09.2021 16:12:31
Very strange, seems to be °C, °F, and °Re.
Interestedly enough, these are the units labeled in the units.xml file as nonlinear. I don't know what any of this means, but I'm sure it has something to do with the built in functions that get us these three units.
![2021-09-16 15_09_34-SMath Solver - [Worksheet1_].png](/ru-RU/file/FouD6M/2021-09-16-15_09_34-SMath-Solver---_Worksheet1___png)
Interestedly enough, these are the units labeled in the units.xml file as nonlinear. I don't know what any of this means, but I'm sure it has something to do with the built in functions that get us these three units.
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Oscar Campo 16.09.2021 16:17:00
#14 Опубликовано: 16.09.2021 16:33:34
Keep in mind that if you define a new dummy unit for °C by adding a "'" to the front, you don't solve your problem.
The conversion for these 3 units is not linear, meaning you can't just multiply by a factor to get the conversion.
If you are only planning on working with your own isolated units without taking advantage of the built in units, then go right ahead and define a custom version of the unit.
This issue needs to be solved in the programing or with a custom function that does the conversion for you the right way and can handle the nonlinear units.
The conversion for these 3 units is not linear, meaning you can't just multiply by a factor to get the conversion.
If you are only planning on working with your own isolated units without taking advantage of the built in units, then go right ahead and define a custom version of the unit.
This issue needs to be solved in the programing or with a custom function that does the conversion for you the right way and can handle the nonlinear units.
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Oscar Campo 16.09.2021 16:37:00
#15 Опубликовано: 16.09.2021 18:07:39
Hello
I think the following can be done
Best Regards
Carlos
I think the following can be done
Best Regards
Carlos
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#16 Опубликовано: 16.09.2021 20:05:14
The issue originally mentioned by Porschaka looks like a bug,
OK Oscar, explain to yourself what the unit should be:
10m*1°C ... Ask SI Community.
Eager to discover ... Jean.
You assign unit to undefined,
do it otherwise: put °C in result.
#17 Опубликовано: 16.09.2021 20:11:41
Jean...
That's not the point of discussion. Please check the original post.
That's not the point of discussion. Please check the original post.
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fedeghi 17.09.2021 03:32:00
#18 Опубликовано: 16.09.2021 21:34:44
Jean, please don't spam the topic with irrelevant information...
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fedeghi 17.09.2021 03:32:00
#19 Опубликовано: 16.09.2021 22:15:27
Jean, please don't spam the topic with irrelevant information...
You are right: Carlos has doctored your red image.
Reynolds is one more doctored for Engineers
... for Smath Community as profitable.
#20 Опубликовано: 16.09.2021 22:28:32
You are right: Carlos has doctored your red image.
Reynolds is one more doctored for Engineers
... for Smath Community as profitable.
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