NPR

This constant can be used to regularly write fort.8 plotting and restart data. IF NPR$>$0 then such output is written every NPR steps. IF NPR$=$0 or if NPR$\ge$NMX then no such output is written. Note that special solutions, such as branch points, folds, end points, etc., are always written in fort.8. Furthermore, one can specify parameter values where plotting and restart data is to be written; see Section 10.9.4. For these reasons, and to limit the output volume, it is recommended that NPR output be kept to a minimum.