Precision on NonLinear Solvers

Precision on NonLinear Solvers - How enhance precision of solution? - Messages

#1 Posted: 10/9/2021 2:51:57 PM
Roman2302

Roman2302

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Hi, I want to know what is the method of enhance precision in numerical solution into plugin Nonlinear Solvers.

Precision.png

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#2 Posted: 10/9/2021 3:14:52 PM
Jean Giraud

Jean Giraud

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Wrote

I want to know what is the method of enhance precision in numerical solution into plugin Nonlinear Solvers.


There is method unless some reference from source.
Some solvers work more accurately then others.
Generally, they will range from 4 decimals to 15 decimals.
Some functions are so involved in numerical error propagation
that you will have to refine the search range ... Goat radius.
Cheers ... Jean.

Precision.sm (20 KiB) downloaded 38 time(s).
#3 Posted: 10/9/2021 3:34:37 PM
Roman2302

Roman2302

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Yes, using a initial values more accurately I have a better precision. Thanks so much
#4 Posted: 10/9/2021 8:04:59 PM
Jean Giraud

Jean Giraud

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Wrote

Yes, using a initial values more accurately I have a better precision. Thanks so much


Another example, much different solver.
15 decimals in Engineering works makes no sense
Cheers for your profitable application(s) ... Jean.

Precision Solve.sm (47 KiB) downloaded 32 time(s).
#5 Posted: 10/10/2021 9:20:41 AM
Jean Giraud

Jean Giraud

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... both high accuracy solvers in same document.
Your stuff collapsed/disabled.
Occasionally, roots(2), roots(3) are profitable.
Jean

Precision Solve.sm (68 KiB) downloaded 38 time(s).
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sergio 10/10/2021 12:52:00 PM
#6 Posted: 10/10/2021 1:59:37 PM
Roman2302

Roman2302

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Thanks so mucho
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