void dcopy(long,double[],long,double[],long);
void ddaslx(void(*)(),long,double*,double[],double[],double,long[],double[],
      double[],long*,double[],long,long[],long);
double ddot(long,double[],long,double[],long);
void dgefa(double*,long,long,long[],long*);
void dgesl(double*,long,long,long[],double[],long);