Modulus Counting

Count up or down modulo a given integer. The radii of the colored segments represent possible residues of the selected modulus. The black number on the white ring gives the current value of counting. The white polygon on the black disk marks the residue obtained from the current value of counting. Both values can be displayed either by decimal digits or by taking the modulus to be their base. Count in the range -99 to 99 and select your modulus. The angle view shows residues as angles. The dial view represents them clockwise.