Total mass density of NGC 3115 from the fiducial model. The red solid line with the associated shaded region shows the median, and the 16th and 84th percentiles of the total mass density profile. The red dashed line shows the median scale radius of the total mass density profile. The black solid line and grey shaded regions show the resulting single power-law fit in the region 0.1 < r/R_e < 4 and the 1σ uncertainties, as explained in Sect. 5.4. The orange vertical lines show the stellar effective radius and the blue lines indicate the positions of the tracers for reference.