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Offline johnspark  
#1 Posted : 29 November 2021 00:31:36(UTC)
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I have a symbol that nearly works for all cases. At the moment I am not sure how to get the first IF statement to work.

Levi-Civita Symbol_try.sm (96kb) downloaded 5 time(s).


LC_Capture.JPG


Thank you for your help in anticipation


Kind Regards,

John

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Offline Razonar  
#2 Posted : 29 November 2021 02:16:51(UTC)
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Hi. The "E" in the first if isn't the same "E" than the others. You can see that looking that the bakground isn't gray, like in all others.

img0.png

Best regards.
Alvaro.
thanks 1 user thanked Razonar for this useful post.
on 02/12/2021(UTC)
Offline johnspark  
#3 Posted : 29 November 2021 06:04:25(UTC)
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Originally Posted by: Razonar Go to Quoted Post
Hi. The "E" in the first if isn't the same "E" than the others. You can see that looking that the bakground isn't gray, like in all others.




That fixed it Alvaro! Clapping ...
Offline Jopi  
#4 Posted : 30 November 2021 18:12:24(UTC)
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Hi John,

I did the same thing a few days ago, typing in a few less letters if you need it....

Levi-Civita.png
Offline johnspark  
#5 Posted : 01 December 2021 00:33:30(UTC)
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Originally Posted by: Jopi Go to Quoted Post
Hi John,

I did the same thing a few days ago, typing in a few less letters if you need it....

Levi-Civita.png



Your solution is more efficient than mine Jopi, yes please post your code,

thank you,



Kind Regards, John
Offline Jopi  
#6 Posted : 01 December 2021 13:17:49(UTC)
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DotProduct.png

Levi-civita.sm (9kb) downloaded 18 time(s).

Does anyone know how to summarize the result into a single vector?

Best regards
Offline Jean Giraud  
#7 Posted : 01 December 2021 21:22:31(UTC)
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Originally Posted by: Jopi Go to Quoted Post
Does anyone know how to summarize the result into a single vector?

I don't understand much in there.
As it looks your are solving Cross Product ... is it ?
Cheers ... Jean

Levi-civita [Not Sure].sm (13kb) downloaded 6 time(s).
Offline johnspark  
#8 Posted : 02 December 2021 11:48:51(UTC)
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Originally Posted by: Jean Giraud Go to Quoted Post
Originally Posted by: Jopi Go to Quoted Post
Does anyone know how to summarize the result into a single vector?

I don't understand much in there.
As it looks your are solving Cross Product ... is it ?
Cheers ... Jean

Levi-civita [Not Sure].sm (13kb) downloaded 6 time(s).



acrossb.JPG


Here is the cross product Jean and also Jopi, so you are pretty close to the money.


and here is a bit more again, this time the determinant:
detlevicivita.JPG


Here is the wedge product i am particularly interested in, see the similarity to axb?

wedgeab.JPG
Offline Jean Giraud  
#9 Posted : 02 December 2021 16:06:11(UTC)
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Originally Posted by: johnspark Go to Quoted Post
Here is the cross product Jean and also Jopi, so you are pretty close to the money.

Thanks John ...more in there from lot more convivial Smath
Shitting snow today, not to scare the bear ... Jean.

Maths vminor [cofactors].sm (41kb) downloaded 6 time(s).
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