I have the following data available.
1572415440 1.110919
1572415500 1.110919
1572415560 1.110915
1572415620 1.110908
1572415680 1.110892
It forms a curve which is somewhat concave.
You can see that here:
https://mycurvefit.com/share/b7de79ee-dafc-42f8-9e2b-8c7140b16b87
I was tying to find the equation of the curve and the degree of the curvature without using the radius of curvature. I thought the site might be helpful in finding the equation which it does but I am still not able to find a general equation for such curves.
The equation I got is:
y = 1.110889 + (1.110911 - 1.110889)/(1 + (x/2222773000)^25236300)
But I cannot understand how I can find the equation of such a curve and calculate the degree of the curve without using the radius of the curve.
If anyone has any suggestion please let me know.