get_b_from_angle

luminet.isoradial.Isoradial.get_b_from_angle(angle: float | numpy.ndarray) → float | numpy.ndarray

Get the impact parameter \(b\) for a given angle \(\alpha\) on the isoradial.

This method does not calculate the impact parameter, but rather finds the closest impact parameter to the given angle.

Parameters:

angle (float | np.ndarray) – Angle \(\alpha\) in radians.

See also

calc_b_from_angle() to explicitly solve for the impact parameter.

Returns:

float | ndarray – The impact parameter \(b\) for the given angle \(\alpha\).