1 long mdfunc (double b,
2 	     signed short *x,
3 	     signed short *y,
4 	     double *a,
5 	     int n,
6 	     signed short *tmp);
7 
8 void l1fit (signed short *x,
9 	    signed short *y,
10 	    int n,
11 	    double *a,
12 	    double *b);
13