1 
2 #ifndef _ALH_AP_H_
3 #define _ALH_AP_H_
4 
5 #include <FDM/LaRCsim/ls_constants.h>
6 
7 double alh_ap(double pitch, double pitchrate, double H_ref, double H,
8               double V, double sample_t, int init);
9 
10 #endif //_ALH_AP_H_
11