FNAiereturns the value ofe2xx/3Ai(x).Xmust be positive or zero.Aiis the Airy function of the first kind. This subroutine is useful for determining the value of Ai(x) for large positive values ofx, where the relatedFNAifunction returns values near zero.
Errors
FNAiecauses an HTBasic error if its argument is not of type REAL or ifxis negative.