and 
void arsefm(double g, double m1, double m2, double result[5], int *ierr);
Compute the expansion fan properties given
and
.
ENTRY: Specific heat constant
.
ENTRY: Upstream mach number
.
ENTRY: Downstream mach number
.
EXIT: Array with result properties as described in 12.
EXIT: (optional) Return status code.
Specific heat ratio
.
Given
or
out of range.