3.13.6 arspmfv - Mach number from

double arspmfv(double g, double v);

Computes the mach number given the Prandtl-Meyer angle .

Performance
Iterative

Arguments

G - REAL

ENTRY: Specific heat constant .

V - REAL

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).