WKBDecaySolution

Evaluate the Airy-based WKB decay envelope used for pruning regions.

Developer documentation: this item describes internal implementation details.

---

Declaration

 decay = WKBDecaySolution(xi,L_osc,N2Omega2)

Parameters

• xi positive distance from a turning point in WKB coordinates
• L_osc total oscillatory extent used in the asymptotic scaling
• N2Omega2 values of \(N^2-\omega^2\)

Returns

• decay WKB decay-envelope estimate

Discussion

            The decay part of the lowest F-mode. xi should be > 0