dyad.mean_anomaly_from_eccentric_anomaly

dyad.mean_anomaly_from_eccentric_anomaly(eta, e)

Return the mean anomaly

Parameters:

etaarray-like

Eccentric anomaly

earray-like

Eccentricity

Returns:

resndarray

Mean anomaly.

Examples

Scalar parameters.

>>> mean_anomaly_from_eccentric_anomaly(1., 0.5)
0.5792645075960517

Array-like parameters defining multiple orbits.

>>> eta, e = [1., 1.], [0.5, 0.5]
>>> mean_anomaly_from_eccentric_anomaly(eta, e)
array([0.57926451, 0.57926451])