void dcopy(long,double[],long,double[],long);
void dhtcc(long,long,long,long,double[],double*,double[],
	long,long);
void dhtgen(long,long,long,long,double[],long,LOGICAL32,
	double*,double[],long,long,LOGICAL32);
void dqrbd(long*,double[],double[],long,double*,long,long,
	double*,long,long);
void dsvdrs(double*,long,long,long,double*,long,long,
	double[],double[]);
void dswap(long,double[],long,double[],long);
void ermor(STRING,byte);
void ermsg(STRING,long,long,STRING,byte);
void ierv1(STRING,long,byte);