Blue's user avatar
Blue's user avatar
Blue's user avatar
Blue
  • Member for 13 years, 7 months
  • Last seen more than a week ago
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About

  • Follow @blue on mathstodon.xyz, the mathy Mastodon instance.

  • See my (Tee)Spring shop, "Inspired by Math", for t-shirts featuring some of my mathy
    designs that have become somewhat popular on Math.SE.

  • My Etsy shop, also "Inspired by Math", has posters. (Want a particular design? Tell me!)

  • Contact me via the "Email the Trigonographer" link at trigonography.com.


  • Trigonographer at trigonography.com, spotlighting diagrammatic proofs for trig relations.

  • Hedronometer at hedronometry.com, studying the dimensionally-enhanced trig of tetrahedra.


  • I use GeoGebra —specifically, the desktop app— for my images.
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Top posts
answer
6
Jul 29, 2010
answer
3
Jul 29, 2010
answer
-2
Sep 11, 2010
answer
-3
May 8, 2014
answer
-4
Sep 11, 2010