complex no.s and exponential angles

#1 Posted: 12/15/2021 6:27:32 AM

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I have assigned angles to three currents, but I am getting an error because Smath thinks the units are different, but they are the same.
Error message is: 'Units don't match'.
Also |I.V current| is displayed as 752/25A instead of 30.08A, guess i need to do some tweaking somewhere.
I suspect I am doing something basically wrong. Hope someone can put me back on track,

kind regards,

John

File not found.File not found.

#2 Posted: 12/15/2021 7:04:15 AM

sergio

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You simply went wrong to enter the complex exponential function. See that it is blue: it has been inserted as a unit of measurement and then elements are added with different units.

sergio

#3 Posted: 12/15/2021 10:28:22 PM

John Heidenreich

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You simply went wrong to enter the complex exponential function. See that it is blue: it has been inserted as a unit of measurement and then elements are added with different units.

sergio

Thank you Pompelmo, that's got me going

#4 Posted: 12/16/2021 2:56:13 PM

Jean Giraud

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I suspect I am doing something basically wrong. Hope someone can put me back on track,

Hello John,
Once all e^ doctored exp(,) ... no more units don't match
At this point, you are the expert to sanity your project.
Up there, Santa has a flat chariot
Take are ... Jean.

check positive and negative sequence components.sm (27 KiB) downloaded 36 time(s).

#5 Posted: 12/16/2021 7:47:59 PM

John Heidenreich

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check positive and negative sequence components.sm (267 KiB) downloaded 37 time(s).

Wrote

Wrote
I suspect I am doing something basically wrong. Hope someone can put me back on track,

Hello John,
Once all e^ doctored exp(,) ... no more units don't match
At this point, you are the expert to sanity your project.
Up there, Santa has a flat chariot (a small no. of people think the earth is flat, I think it is slightly oblate spheroidal, like a spinning pizza)
Take are ... Jean.

check positive and negative sequence components.sm (27 KiB) downloaded 36 time(s).

Thank you Jean for your time correcting my file, unfortunately I could not open it. However, it did give me impetus to carry on with my Pompelmo

corrected file.

So here it is so far.

check positive and negative sequence components.sm (267 KiB) downloaded 37 time(s).

Jean if you would like me to add to this, perhaps draw rotating graphs of the pos, neg zero sequence components i would be happy to, but will need some help with the graph stuff and animation,

Kind regards

John

Its going to be a hot one, 36C today.

#6 Posted: 12/16/2021 8:24:46 PM

Jean Giraud

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Thank you Jean for your time correcting my file, unfortunately I could not open it. However, it did give me impetus to carry on with my Pompelmo corrected file.

You can conserve units [silent] and recover at the end.
First time, can't open... Jean.

check positive and negative sequence components UNITS.sm (32 KiB) downloaded 33 time(s).

#7 Posted: 12/16/2021 9:01:11 PM

overlord

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Your file has a non calculated matrix you have mentioned.
Here it is corrected, just put a line before expression.
The line usually fix that kind of problems.

And e^ is working fine, no difference in your file while using e^ or exp().

check positive and negative sequence components_r1.sm (236 KiB) downloaded 43 time(s).

Never ever use "silence units", whatever that garbage term means. It is utterly useless crap.
You would just define again already defined unit with a different name which won't interact with other units.
If available always use bundled, included units. That is what a sane people do.

And Jean, stop misleading new users with your nonsense.

1 users liked this post

fedeghi 12/17/2021 3:58:00 AM

#8 Posted: 12/16/2021 9:54:35 PM

John Heidenreich

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Your file has a non calculated matrix you have mentioned.
Here it is corrected, just put a line before expression.
The line usually fix that kind of problems.

And e^ is working fine, no difference in your file while using e^ or exp().

check positive and negative sequence components_r1.sm (236 KiB) downloaded 43 time(s).

I got the line to work overlord, thank you.

#9 Posted: 12/17/2021 8:00:11 AM

Jean Giraud

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Thank you Jean for your time correcting my file, unfortunately I could not open it.

First step doctored c/w units.

#10 Posted: 12/17/2021 8:10:03 AM

John Heidenreich

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Thank you Jean for your time correcting my file, unfortunately I could not open it.

First step doctored c/w units.

Jean fortunately it works now after a few changes. Please see the R1 version.

Later I will add vectors in a diagram using some info from one of your plots

. Then I will add animation, which should make clear to interested parties how + - and 0 sequence works.

kind regards again,

John

#11 Posted: 12/17/2021 8:30:51 AM

Jean Giraud

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Jean if you would like me to add to this, perhaps draw rotating graphs of the pos, neg zero sequence components i would be happy to, but will need some help with the graph stuff and animation,

Will be back on that.

#12 Posted: 12/17/2021 10:34:17 AM

Jean Giraud

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... few more.

Maths (-1)^x Convention SAMPLES.sm (99 KiB) downloaded 37 time(s).

#13 Posted: 12/17/2021 11:42:11 AM

Jean Giraud

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Later I will add vectors in a diagram

Something like this, that you can scale individually.
Cheers ... Jean... please report if can't open.

2D Util Bar Arrow Creator [3 phases motor].sm (20 KiB) downloaded 38 time(s).

#14 Posted: 12/17/2021 2:36:57 PM

overlord

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He didn't "doctored" anything for me.
(Doctored means corrected in Jean's twisted mind, what a stupid word).
There is a bug which (-1)^x sometimes wrong.
He first claimed there is no bug such as that.
I proved there is a bug indeed.
He than claimed (-1)^x don't have a mathematical meaning.
When again proved he is wrong, he posted some useless examples trying to go around the bug.
When I insisted he is still wrong, he simply deleted everything he posted.
e^(π*i) = -1 and there is no difference with e^x and exp(x).

#15 Posted: 12/17/2021 3:37:37 PM

Norm Schutzkus

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Ang Sample.sm (25 KiB) downloaded 35 time(s).

My 2 cents. I hope this is helpful.

Sincerely,

Norm

#16 Posted: 12/17/2021 5:29:08 PM

Jean Giraud

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Something like this, that you can scale individually.
Cheers ... Jean... please report if can't open.

... refactored version to get rid of rkfixed
Jean.

2D Util Bar Arrow Creator [3 phases motor].sm (17 KiB) downloaded 36 time(s).

#17 Posted: 12/17/2021 10:07:03 PM

John Heidenreich

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Ang Sample.sm (25 KiB) downloaded 35 time(s).

My 2 cents. I hope this is helpful.

Sincerely,

Norm

Nasch you have some good stuff here I am going to cherry pick the bit I can use thank you :

#18 Posted: 12/17/2021 10:13:19 PM

John Heidenreich

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Something like this, that you can scale individually.
Cheers ... Jean... please report if can't open.

... refactored version to get rid of rkfixed
Jean.

2D Util Bar Arrow Creator [3 phases motor].sm (17 KiB) downloaded 36 time(s).

First one was good Jean, this one is even better. I can use this thank you

#19 Posted: 12/18/2021 2:26:27 AM

John Heidenreich

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Something like this, that you can scale individually.
Cheers ... Jean... please report if can't open.

... refactored version to get rid of rkfixed
Jean.

2D Util Bar Arrow Creator [3 phases motor].sm (17 KiB) downloaded 36 time(s).

Jean, I have added your graph feature to the document, but cannot quite get it to work.

I need to be able to add magnitude and angle to each of the three vectors with arrow heads and the graph needs to scale as well, perhaps 1.5 times greatest magnitude.

check positive and negative sequence components_r1-1_works.sm (324 KiB) downloaded 34 time(s).

thank you.

#20 Posted: 12/18/2021 2:31:11 AM

John Heidenreich

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Wrote

Wrote

Wrote
Something like this, that you can scale individually.
Cheers ... Jean... please report if can't open.

... refactored version to get rid of rkfixed
Jean.

2D Util Bar Arrow Creator [3 phases motor].sm (17 KiB) downloaded 36 time(s).

Jean, I have added your graph feature to the document, but cannot quite get it to work.

I need to be able to add magnitude and angle to each of the three vectors with arrow heads and the graph needs to scale as well, perhaps 1.5 times greatest magnitude.

check positive and negative sequence components_r1-1_works.sm (324 KiB) downloaded 34 time(s).

thank you.

check positive and negative sequence components_r1-1_works.sm (321 KiB) downloaded 36 time(s).
(Thanking all those that have helped

)

SMath

complex no.s and exponential angles

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complex no.s and exponential angles - Messages