Interpolation functions

[Mightyginger]

Hi,

I'd written my own interpolation functions in excel but because of the sheer number of interpolations I do on the sheet it's become a bit too slow. Does anyone have a dll that I can use as a plugin which does linear, loglinear and cubic interpolation please?

I'd really appreciate any help with this.


Thanks,



Neil.

 

[Zathras]

See my function in thread707-914789. It is written for linear interpolation, but can easily be adapted for any relationship you need.