SpecialFuncs.Biry Function

Airy function or it's derivative of the second kind (Real argument, allows derivative and scale).

Pascal

function Biry(A: double; Derive: boolean; Scale: boolean; var Error: integer): double; overload;

Parameters	Description
A	Defines complex value where BI or it's derivative should be evaluated.
Derive	If true, function will return Airy (BI) derivative instead of the actual Airy (BI) function.
Scale	If true, result function (BI) or it's derivative is scaled by Exp(-\|z\|\|z\|), where z = z = (2/3)(Z)^(3/2)
Error	Returns error code after the calculation. Return values are: 0, Normal return - Computation completed. 1, input error - no computation. 2, overflow - no computation; dreal(zta)- too large with Scaling=false. 3, zabs(z) large - computation completed. Losses of signifcance by argument reduction produce less than half of machine accuracy. 4, zabs(z) too large - no computation; complete loss of accuracy by argument reduction. 5, error - no computation; algorithm termination condition not met.

the Airy function or it's derivative of the second kind (BI).

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