369 math tools

Fourteen free tools, one for each door in The 369 Rabbit Hole. Collapse any number to its digital root, watch 6174 swallow every four digit number, spin one seventh, open a Julia set, split two chaos twins. Every one does real math and marks the legend as legend.

  1. 01 Vortex Studio Level 03 · The Material Loop

    Collapse any number or date to one digit, trace it on the doubling circle and the wheel of 24, and get your own fractal.

  2. 02 Digital Root Calculator Level 02 · The Collapse

    Every step of the collapse to one digit, for numbers thousands of digits long.

  3. 03 369 Method Journal Level 01 · The Legend

    Write your line 3, 6 and 9 times a day and keep the streak, with honest notes on the legend.

  4. 04 The 6174 Black Hole Level 08 · The Traps

    Any four digits fall into 6174 in at most 7 steps. Watch yours fall in.

  5. 05 Times-Table Circle Studio Level 10 · The Heart

    Join every point to its double and a cardioid appears. Change the rule, watch new shapes bloom.

  6. 06 Julia Portal Level 12 · The Rabbit

    Fly around the Mandelbrot set and open the Julia set behind any point.

  7. 07 432 vs 440 Tuner Level 05 · The Octave

    Sing or play into the mic and see your pitch in both tunings at once.

  8. 08 Cyclic Number Machine Level 06 · The Seventh

    Why 1/7 = 0.142857 spins, and which primes make numbers like it.

  9. 09 Fibonacci Clock Level 07 · The Wheel of 24

    The 24 digit Fibonacci wheel, and the repeating cycle for any number, not only 9.

  10. 10 The Oracle Level 09 · The Lens

    A mind reading trick that finds your hidden digit every time, and why it works.

  11. 11 Base Shifter Level 09 · The Lens

    The vortex in every base from 2 to 36. Ten is not special, nine plus one is.

  12. 12 Chaos Twins Level 11 · The Shift

    Two points a trillionth apart, doubled until they split. The butterfly effect, exactly.

  13. 13 Name Collapse Level 02 · The Collapse

    Letters to numbers to one digit, in three alphabet systems side by side.

  14. 14 The Flux Field Level 04 · The Flux Field

    Double or halve any number and watch 3 and 6 flip, 9 stand still, and the rest run the loop. Plus polygon corners and time.