Solve for Unknowns

Solve for Unknowns - 9 Equations, 9 Unknowns - Mensajes

#1 Publicado: 16/1/2018 16:57:54
Norm Schutzkus

Norm Schutzkus

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Transferring a MC sheet. How can I solve for the unknowns?BJT Circuit Analysis.sm (54,64 KiB) descargado 1261 vez(es).
#2 Publicado: 16/1/2018 17:48:31
Arie

Arie

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For using Linsolve(1) function, you need to put the system of equations into a matrix. The result computes the unknowns in alphabetical order, I believe. You can retrieve this information using Unknowns function.



BJT Circuit Analysis.sm (63,79 KiB) descargado 1307 vez(es).
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#3 Publicado: 16/1/2018 18:45:55
Norm Schutzkus

Norm Schutzkus

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Many thanks!
#4 Publicado: 16/1/2018 22:15:48
Jean Giraud

Jean Giraud

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Wrote

You can retrieve this information using Unknowns function.



Unknowns("variable") - ... from f(x) menu
Returns a vector of unassigned variables contained in "1:variable".
If unknowns are not found, returns 0.

Solutions are returned in lexicographic order ... inspect Unknowns(A)
#5 Publicado: 16/1/2018 23:41:57
Jean Giraud

Jean Giraud

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... thanks for this LinSolve application.

Maths LinSolve.sm (69,68 KiB) descargado 1307 vez(es).

#6 Publicado: 17/1/2018 4:03:40
Jean Giraud

Jean Giraud

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Wrote

Transferring a MC sheet. How can I solve for the unknowns?



Here is another MCD sheet, converted Smath [circuit application].
Iterative solvers are common in Engineering.

Solve TREASURY_1 [Iterate L, Lc].sm (58,21 KiB) descargado 1150 vez(es).

#7 Publicado: 17/1/2018 10:33:57
Norm Schutzkus

Norm Schutzkus

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Thanks Jean, for the Solve Treasury worksheet. I updated my sheet splitting the ampere and voltage values apart.

Best regards,

NormBJT Circuit Analysis.sm (49,34 KiB) descargado 1240 vez(es).
#8 Publicado: 17/1/2018 11:07:30
Arie

Arie

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I've modified the LinSolve(1) function and created a LinSolve2(2) function that allows user to specify result order vector. I've named it LinSolve2 to avoid confusion with the LinSolve(2) Maxima Plugin function.
Not sure if this is useful for anyone.

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#9 Publicado: 18/1/2018 1:23:34
Jean Giraud

Jean Giraud

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I've modified the LinSolve(1) function and created a LinSolve2(2) function that allows user to specify result order vector. I've named it LinSolve2 to avoid confusion with the LinSolve(2) Maxima Plugin function.
Not sure if this is useful for anyone

.
Lovely separation of result.
A useful companion attached, more examples in future.

Solve LinSolve COMPANION.sm (31,58 KiB) descargado 1283 vez(es).

#10 Publicado: 18/1/2018 9:35:41
Arie

Arie

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Citar

... thanks for this LinSolve application.



Jean, I believe the original LinSolve function is a snippet created by Martin (mkraska). You can find it within the Snippet Manager in SMath.
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#11 Publicado: 19/1/2018 12:07:33
Jean Giraud

Jean Giraud

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Wrote


Jean, I believe the original LinSolve function is a snippet created by Martin (mkraska)


I think so ... those gyzmas # are Martin style.
Easy to removed all # ... like this

1. start by the LHS in the program definition
2. put the cursor on the right of the #
3. press F8 to see all selected, in the program core as well
4. once selected, press Backspace ... gone
5. next proceed in the core of the program
6. result => nice and clean

Cheers

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