## Ada Font |
## by Ada Bienkowska, Erik Demaine, and Martin Demaine, 2018 |

**Two shapes.** At age 3, Ada wrote both letters of her name (A and D) using two simpler symbols: a U shape and a line. Together we designed a complete typeface where each letter, digit, and punctuation is written with exactly these two symbols, each used exactly once. Every U shape has exactly the same proportions; the shapes are just rotated and/or scaled.

**Puzzle fonts.** To obscure the letters and turn text into a puzzle, you can **rotate** the U shapes by 180° and/or rotate the lines by 90° (using the checkboxes in the top right). You can also **animate** these rotations for a surprising animation font.

**Related fonts.**
Gilles Esposito-Farèse
independently designed in 2001 a
“lipographic alphabet”
that uses the same two symbols (U and line),
furthermore maintains a consistent scale of the symbols,
but doesn't always use both symbols
(or equivalently, sometimes one symbol is shrunk to zero)
and has varying-height letters.

Check out other mathematical and puzzle fonts. • Feedback or not working? Email Erik.