+ sx=atof(argv[1]);
+ sy=atof(argv[2]);
+ sz=atof(argv[3]);
+
+ // prepare pc
+
+ slots=MAXR/DELTA;
+ aslot=malloc(slots*sizeof(double));
+ if(aslot==NULL) {
+ perror("slot a\n");
+ return -1;
+ }
+ memset(aslot,0,slots*sizeof(double));
+ bslot=malloc(slots*sizeof(double));
+ if(bslot==NULL) {
+ perror("slot a\n");
+ return -1;
+ }
+ memset(bslot,0,slots*sizeof(double));
+ cslot=malloc(slots*sizeof(double));
+ if(cslot==NULL) {
+ perror("slot a\n");
+ return -1;
+ }
+ memset(cslot,0,slots*sizeof(double));
+
+ printf("i: allocated 3 times %d slots ...\n",slots);
+
+ // use all given files ...
+ printf("using files:\n");
+ for(fcnt=4;fcnt<argc;fcnt++)
+ printf(" %d: %s\n",fcnt-4,argv[fcnt]);
+
+ for(fcnt=4;fcnt<argc;fcnt++) {
+
+ fd=open(argv[fcnt],O_RDONLY);