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Solve for Unknowns - 9 Equations, 9 Unknowns - Messages
#1 Posted: 1/16/2018 4:57:54 PM
Transferring a MC sheet. How can I solve for the unknowns?BJT Circuit Analysis.sm (54 KiB) downloaded 48 time(s).
#2 Posted: 1/16/2018 5:48:31 PM
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 KiB) downloaded 67 time(s).
BJT Circuit Analysis.sm (63 KiB) downloaded 67 time(s).
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#3 Posted: 1/16/2018 6:45:55 PM
Many thanks!
#4 Posted: 1/16/2018 10:15:48 PM
WroteYou 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 Posted: 1/16/2018 11:41:57 PM
#6 Posted: 1/17/2018 4:03:40 AM
WroteTransferring 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 KiB) downloaded 71 time(s).
#7 Posted: 1/17/2018 10:33:57 AM
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 KiB) downloaded 45 time(s).
Best regards,
NormBJT Circuit Analysis.sm (49 KiB) downloaded 45 time(s).
#8 Posted: 1/17/2018 11:07:30 AM
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.
BJT Circuit Analysis (1).sm (86 KiB) downloaded 59 time(s).
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#9 Posted: 1/18/2018 1:23:34 AM
.WroteI'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 KiB) downloaded 69 time(s).
#10 Posted: 1/18/2018 9:35:41 AM
Quote... 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 Posted: 1/19/2018 12:07:33 PM
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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