[Libreoffice-bugs] [Bug 142643] LibreOffice Calc power regression coefficients error

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=142643

--- Comment #8 from Uwe Auer <uwe at franke-auer.de> ---
(In reply to edwardsontan from comment #5)
> The following is the dataset that I was working on and which first alerted
> me to the problem. 
> 
> X       Y
> ----------
> 240	57
> 280	48
> 320	40
> 360	35
> 400	30
> 500	25
> 600	20
> 700	17
> 800	14
> 1000	11.5
> 1200	9.5
> 1500	8
> 2000	6.7
> 2500	5.5
> 3000	4
> 4000	3
> 6000	2
> 8000	1.2
> 
> I used an online power regression calculator
> (https://keisan.casio.com/exec/system/14059931777261) to get the correct
> answers. 
> 
> Libre Calc results:
> a = -1.03774556216783
> b = 9.66940331258679
> 
> Online calculator results:
> a = 15825.903
> b = -1.03774556

My Result: EXP(9.66940331258679) = 15825.9030884824

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