Convert X value to Y
yv = polyo:y(xv)
Perform the n-order polynomial conversion of xv
xv
e.g.
local p = float.poly(5, 1, 0.5, 0.01) -- 5 + x + 0.5x^2 + 0.01x^3 local y = p:y(123) -- -> 26301.17 local y = p:y(-123) -- -> -11162.17