poliastro.core.stumpff

Module Contents

Functions

c2(psi)	Second Stumpff function.
c3(psi)	Third Stumpff function.

poliastro.core.stumpff.c2(psi)

Second Stumpff function.

For positive arguments:

\[c_2(\psi) = \frac{1 - \cos{\sqrt{\psi}}}{\psi}\]

poliastro.core.stumpff.c3(psi)

Third Stumpff function.

For positive arguments:

\[c_3(\psi) = \frac{\sqrt{\psi} - \sin{\sqrt{\psi}}}{\sqrt{\psi^3}}\]