regression

5lider shared this question 9 months ago
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Please explain.

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Oh god, it appeared without description, sry.

So my problem is that I've made the Regression(l1, f)

Where l1 is list of points and f(x) = ax^3+bx^2+cx+d

Geogebra draw for me a graph of new function and the equation with some numbers.

I wanted to check this so I've made another function with a,b,c,d set on numbers showed in regression function.

I was suprised that graphs aren't the same and after manually checking it was obvious that numbers showed in regression equation aren't precise enough.

Is it a bug or is there any way to get fitting numbers?

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Please post your .ggb file

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Try

Coefficients(g)
Also increasing the rounding in Settings might be useful

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Yes, that was indeed the rounding issue. An extremely useful tip, thank you!

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