- #1
el_hijoeputa
- 19
- 0
Please tell me if some of you know of a way, or program that I can download or use to fit a given polynomial to a set of data.
I have done an experiment in which I varied two currents thru wires (Ix, Iy) and measured the Temperature at a given point (T). The polynomial is known from a model (I still don't know it for sure), but let's say that it is:
T = a+ b(Ix) + c(Iy) + d(Ix)^4 + e(Iy)^4
I need to obtain the value of this polynomial, because the current where measured (Ix from 0 to 8, Iy from 0 to 8), and I need values in the range of Ix=8, Iy=10 (Extrapolate).
Most of the programs I used for data manipulation fit polynomial for 2D curves (only one variable), not surfaces.
I have done an experiment in which I varied two currents thru wires (Ix, Iy) and measured the Temperature at a given point (T). The polynomial is known from a model (I still don't know it for sure), but let's say that it is:
T = a+ b(Ix) + c(Iy) + d(Ix)^4 + e(Iy)^4
I need to obtain the value of this polynomial, because the current where measured (Ix from 0 to 8, Iy from 0 to 8), and I need values in the range of Ix=8, Iy=10 (Extrapolate).
Most of the programs I used for data manipulation fit polynomial for 2D curves (only one variable), not surfaces.