The number of cycles of plane searching. Each cycle, the program NODIRAX
starts with a new group of nrspot
randomly chosen spots, and tries
to construct conics with them. The randomly chosen spots can be
displayed each cycle using xdisp. If an important conic does not contain
three randomly chosen spots, ncycle can be increased, nrspot
can be increased, or the number of spots found by the peak-search algorithm
can be raised.
format integer default ncycle 5 example ncycle 10