regressionAdd     134 core/gps.c         regressionAdd (&reg->lat_w, time, geo->lat_w);
regressionAdd     135 core/gps.c         regressionAdd (&reg->lon_w, time, geo->lon_w);
regressionAdd     292 core/gps.c         regressionAdd           (&deltareg, now, pdelta.delta);                 // do the regression
regressionAdd      76 core/gps_math.h extern void   regressionAdd (t_regression *rcb, double x, double y);