Star Trek Math
Are you a Star Trek fan? Do you speak Klingon, a language used on the Star Trek series?
The Klingon language was first designed by James Doohan and then expanded by Marc Okrand. If you want to learn it, you can find commercial products such as a dictionary, audiotapes, and a software tutors.
My interest is Klingon mathematics. Its number system is base-three, but without a zero. Though with a different symbol system, counting would proceed 1, 2, 3, 11, 12, 13, 21, 22, 23, 31, ....
Key math operations/ concepts are: boq (+), boqHa' (-), boq'egh (x), boqHa''egh (/), mIS (random), HeHmI' (pi), ghurmi' (e), 'ar (how much?), mI''a' (number), taH'a' (negative), joq (sine), joqHa' (cosine), qojmI' (tangent), and ghurtaH (ln).
In fact, at the web site MrKlingon.com, you can use an on-line Klingon Kalculator...and if you really want to be like Spock, at another website you can manipulate an on-line Klingon slide rule.