slmsuite.holography.analysis.fitfunctions.parabola

parabola(x, a, x0, y0)

For fitting a parabola.

\[y(x) = a(x - x_0)^2 + y_0\]

Parameters:

• x (numpy.ndarray) – Some independent variable.

• a (float) – Strength of the parabola.

• x0 (float) – \(x\) position of the vertex.

• y0 (float) – \(y\) position of the vertex.

Returns:

y – Line evaluated at all x.

Return type:

numpy.ndarray