dyad.true_anomaly_from_eccentric_anomaly

dyad.true_anomaly_from_eccentric_anomaly(eta, e)

Return the true anomaly

Parameters:

etaarray-like

Eccentric anomaly.

earray-like

Eccentricity.

Returns:

resndarray

True anomaly.

Examples

Scalar parameters.

>>> true_anomaly_from_eccentric_anomaly(1., 0.5)
1.515548152879973

Array-like parameters defining multiple orbits.

>>> eta, e = [1., 1.], [0.5, 0.5]
>>> true_anomaly_from_eccentric_anomaly(eta, e)
array([1.51554815, 1.51554815])