
DOUBLE PRECISION FUNCTION AR13AE(G,V) DOUBLE PRECISION G, V
Computes the mach number
given the Prandtl-Meyer angle
.
ENTRY: Specific heat constant
.
ENTRY: Prandtl-Meyer angle
.
Return value
This function returns the mach number
for the given mach Prandtl-Meyer angle
or NAN (Not-a-Number) if an error has
occurred).