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Function from plot - Сообщения
WroteHow can I get a function from this plot ?
1. Probably from the expensive digitizer suggested by Richard [Mathsoft Collaboratory]
2. Piecewise from Tracer.
3. Try Mathsoft digitizer.
4. Smath difficult
At this point from the collected data set, fit a model function.
Cheers ... Jean.
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Valery Ochkov 06.06.2023 10:24:00
Greetings,
That is a straight line on a semi-log graph; you can reference this handout: https://inside.mines.edu/~epoeter/_GW/LAB/EquationsOfStraightLinesOnDifferentTypesGraphPaper.pdf
Per this handout, your equation should be where:
May this be of Good Help;
⚜ Kenny Lemens, P.E. ᵂᴵ
WroteHow can I get a function from this plot? 🖼
That is a straight line on a semi-log graph; you can reference this handout: https://inside.mines.edu/~epoeter/_GW/LAB/EquationsOfStraightLinesOnDifferentTypesGraphPaper.pdf
Per this handout, your equation should be
y = b + m*log(x)
- m = difference in y over one log cycle of x
- b = y value corresponding to x=1
May this be of Good Help;
⚜ Kenny Lemens, P.E. ᵂᴵ
"No matter where you go, there you are." -Buckaroo BanzaiHotkeys: https://en.smath.com/forum/resource.ashx?a=45771&b=2
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Valery Ochkov 06.06.2023 10:24:00
WroteHow can I get a function from this plot?
Hi. You can try this post Approximation of a functional curve in a digital image or this other one: Embedding images into a plot
Best regards.
Alvaro.
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WroteHow can I get a function from this plot ?
Hello Valery,
some Smath digitizing utilities
Cheers, Jean.
Digitize Tracer 15.sm (28,83 КиБ) скачан 249 раз(а).
Digitize OVNI Copy.sm (69,15 КиБ) скачан 260 раз(а).
Digitize Contour Isocurve Himmelblau Copy.sm (106,67 КиБ) скачан 247 раз(а).
Digitize Curve.sm (295,86 КиБ) скачан 248 раз(а).
Digitize Contour.sm (829,05 КиБ) скачан 252 раз(а).
Digitize Clean_Strip_Smooth.sm (1,76 МиБ) скачан 250 раз(а).
... this Himmelblau has resident Gray matrix.
Digitize Contour Isocurve Himmelblau Copy.sm (107,19 КиБ) скачан 252 раз(а).
Digitize Contour Isocurve Himmelblau Copy.sm (107,19 КиБ) скачан 252 раз(а).
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Valery Ochkov 07.06.2023 01:02:00
Hi. Hope this helps.

Modeling a functional curve in a digital image.pdf (860,39 КиБ) скачан 269 раз(а).
Modeling a functional curve in a digital image.sm (1 МиБ) скачан 276 раз(а).
Best regards.
Alvaro.

Modeling a functional curve in a digital image.pdf (860,39 КиБ) скачан 269 раз(а).
Modeling a functional curve in a digital image.sm (1 МиБ) скачан 276 раз(а).
Best regards.
Alvaro.
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