Polynomial interpolation

Hi,
does anyone know if there is direct commands to do this with windev 27.

I seek Polynomial interpolation with values:

count..................real measured
18013.................16,53 mS/m................. between 18013 - 3795
3795...................177,6 mS/m..................between 3795 - 2988
2988...................263 mS/m.....................and so on ...
2504...................354 mS/m
2162.................. 458 mS/m
1507...................762 mS/m
1142...................1212 mS/m

thanks.,
Lasse S



Edited 4 time(s). Last edit at 07/28/2022 09:12AM by LasseS.

Hi,

for polynomial interpolation you'll need at least three points to connect with a parabola! There is no interpolation between two points alone, that would be a straight line!!

If you have those three points then you can find the necessary formulas on the web. If you understand German, there is a nice explanation on YouTube

The full theory in German is here

Kind regards,
Guenter Predl
office@windev.at