fitting.parabola2¶

fitting.parabola2(x, y0, x0, a)¶

Another version of the parabola using the vertex (x0, y0).

Parameters:	x (array) – x-values. y0 (float) – y-coordinate of the vertex. x0 (float) – x-coordinate of the vertex. a (float) – curvature.
Returns:	$f(x) = a (x - x_0)^2 + y_0$ .