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How to increase precision without changing the guess values?
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Offline netsonicyxf  
#1 Posted : 09 August 2024 17:33:25(UTC)
netsonicyxf


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The correct answers to L and Vb are 9020m and 820m/min.
The initial guess values are 10m and 10m/min, these guess value doesn't give good answers.
1.jpg

I add precision condition in FindRoot, but it doesn't help.
2.jpg

Worksheet4.sm (9kb) downloaded 6 time(s). Worksheet1.sm (9kb) downloaded 3 time(s).

Edited by user 09 August 2024 17:35:08(UTC)  | Reason: Not specified
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Offline overlord  
#2 Posted : 10 August 2024 09:12:35(UTC)
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Originally Posted by: netsonicyxf Go to Quoted Post
The initial guess values are 10m and 10m/min, these guess value doesn't give good answers.

Giving guess values for FindRoot() and roots() are more restrictive.
Whatever you do, you may need to change your guess values to fit.
Sometimes, some other plugins may work as intended though.
It is better to cross-check your results.
And plotting is essential imho.

Regards

2024-08-09_23-12.png
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thanks 1 user thanked overlord for this useful post.
on 10/08/2024(UTC)
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