Method for displaying ordinate / abscissa value pairs on a display unit with discrete display points in the abscissa and ordinate directions with the following method steps which are carried out by a computing device: determination of an interpolated ordinate value (Y Lint (s), Y Lint (s+1), Y Lint (s+2), Y Rint (s), Y Rint (s+1), Y Rint (s+2)) at half the abscissa distance between the respective abscissa value (s, s+1, s+2) and the respective abscissa value of the display points on the left-hand side and the right-hand side, determination of a maximum ordinate value (Y MAX (s), Y MAX (s+1), Y MAX (s+2)) and a minimum ordinate value (Y MIN (s), Y MIN (s+1), Y MIN (s+2)) from the ordinate value of the respective ordinate / abscissa value pair, the respective interpolated ordinate value on the left-hand side (Y Lint (s), Y Lint (s+1), Y Lint (s+2)) and the respective interpolated ordinate value on the right-hand side (Y Rint (s), Y Rint (s+1), Y Rint (s+2)) and selection of a random or pseudo-random ordinate value (Y Z (s), Y Z (s+1), Y z (s+2)) between the determined maximum ordinate value (Y MAX (s), Y MAX (s+1), Y MAX (s+2)) and the determined minimum ordinate value (Y MIN (s), Y MIN (s+1), Y MIN (s+2)) for each abscissa value (s, s+1, s+2) of the display points by means of multiplication of the difference between the respective determined maximum ordinate value (Y MAX (s), Y MAX (s+1), Y MAX (s+2)) and the respective determined minimum ordinate value (Y MIN (s), Y MIN (s+1), Y MIN (s+2)) with a random scaling factor associated with the respective abscissa value (s, s+1, s+2), wherein the random scaling factor associated with the respective abscissa value (s, s+1, s+2) is defined by diametrically swapping the bits of a counter state of a counter increased by the associated abscissa value (s, s+1, s+2) and respectively incremented for each individual display image, and quantization of the selected random or pseudo-random ordinate values (Y z (s), Y z (s+1), Y z (s+2)) of the individual ordinate / abscissa value pairs for display on the display image of the display unit in the ordinate resolution of the display points, wherein the ordinate resolution of the display points is reduced compared with the ordinate resolution of the ordinate / abscissa value pairs. determination of an interpolated ordinate value (Y Lint (s), Y Lint (s+1), Y Lint (s+2), Y Rint (s), Y Rint (s+1), Y Rint (s+2)) at half the abscissa distance between the respective abscissa value (s, s+1, s+2) and the respective abscissa value of the display points on the left-hand side and the right-hand side, determination of a maximum ordinate value (Y MAX (s), Y MAX (s+1), Y MAX (s+2)) and a minimum ordinate value (Y MIN (s), Y MIN (s+1), Y MIN (s+2)) from the ordinate value of the respective ordinate / abscissa value pair, the respective interpolated ordinate value on the left-hand side (Y Lint (s), Y Lint (s+1), Y Lint (s+2)) and the respective interpolated ordinate value on the right-hand side (Y Rint (s), Y Rint (s+1), Y Rint (s+2)) and selection of a random or pseudo-random ordinate value (Y Z (s), Y Z (s+1), Y z (s+2)) between the determined maximum ordinate value (Y MAX (s), Y MAX (s+1), Y MAX (s+2)) and the determined minimum ordinate value (Y MIN (s), Y MIN (s+1), Y MIN (s+2)) for each abscissa value (s, s+1, s+2) of the display points by means of multiplication of the difference between the respective determined maximum ordinate value (Y MAX (s), Y MAX (s+1), Y MAX (s+2)) and the respective determined minimum ordinate value (Y MIN (s), Y MIN (s+1), Y MIN (s+2)) with a random scaling factor associated with the respective abscissa value (s, s+1, s+2), wherein the random scaling factor associated with the respective abscissa value (s, s+1, s+2) is defined by diametrically swapping the bits of a counter state of a counter increased by the associated abscissa value (s, s+1, s+2) and respectively incremented for each individual display image, and quantization of the selected random or pseudo-random ordinate values (Y z (s), Y z (s+1), Y z (s+2)) of the individual ordinate / abscissa value pairs for display on the display image of the display unit in the ordinate resolution of the display points, wherein the ordinate resolution of the display points is reduced compared with the ordinate resolution of the ordinate / abscissa value pairs.