\manual DMAGFACTOR(3){} \name DMagFactor---double precision \texword{magfactor} \synopsis double DMagFactor(magfactor) int magfactor; \endsyn \description \i{DMagFactor} returns $\i{magfactor}/1000.0$, with some extra fiddling to get more precise values for the various \texword{magstep}s that are commonly used.