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  • I'm the Trigonographer at, where I'm spotlighting my various "proofs without words" for trigonometric identities and relations.

  • I'm also the Hedronometer at, compiling information about the dimensionally-enhanced trigonometry of tetrahedra. (Currently, the link directs to the Hedronometry section of my blog.)

  • I occasionally post to my research and mathematical miscellany blog, "The Bloog!".

  • I'm the guy behind Tricochet, creator of math-inspired iOS apps such as Trigger, piClock, and Solly. (I also do custom iOS design and development; see UI by Blue.)