1 2 #include "matimpl.h" 3 #include "math.h" 4 5 typedef struct { 6 int m,n,nz, /* rows and columns */ 7 *i,*imax, *ilen, /* j + i[k] is start of row k */ 8 *j; /* ilen is actual lenght of row */ 9 double *a; 10 } Matiaij; 11 12 int MatAIJCreate(); /* (int, int, int); */ 13 14