A calibration polynomial is a type of array value whose keys represent the real number coefficients of a polynomial.
This polynomial is generally used to convert a raw signal to physical units or to apply a correction to another value.
The coefficients are listed in ascending power order, starting from the offset (x0).
So the coefficient at #0
is the intercept, the one at #1
is the slope, the one at #2
is x2, etc.
Intercept 0.25 and slope 0.9
/#0,0.25 /#1,0.9
There are no limits to the number of coefficients involved in the calibration, but in most cases only a slope and intercept are utilized.
High order calibration
/#0,0.25 /#1,0.9 /#2,0.05 /#3,-0.04