New (2026): the Modular Arithmetic Playground is a full-screen version of this idea, with cycles and trees laid out in the plane, string-art chords, and a smooth morph between the two.

The following shows the modular dynamics of addition, multiplication, or powers.

Use ‘ik’ to raise/lower g.

Use ‘jl’ to raise/lower modulus.

Type ‘a’ for additive dynamics.

Type ‘m’ for multiplicative dynamics.

Type ‘p’ for power dynamics.