Double precision maths library

We are doing polynomial calculations linearising a 24 bit sensor input on some micro balances (scale).

Have you considered (and discarded) other approaches for doing this (e.g. lookup-table with interpolation) ?

We are doing polynomial calculations linearising a 24 bit sensor input on some micro balances (scale).

Have you considered (and discarded) other approaches for doing this (e.g. lookup-table with interpolation) ?

We have considered using interpolation and thats the way we are now doing it. We have succeeded in using 64bit integer maths with that so there is no need to go to f.p.