eye candy

June 24, 2011 in Graphics, Projective Spaces

the three directions associated with “arrows’… 001, 010, and 100 in the binary code… are here colored yellow, red, and blue (it didn’t reproduce as well as one would’ve liked). these so-called “primary” colors (for pigments; for colored lights the rules are different) blend along the appropriate cross-sections of the diagram (the easy-to-see ones with [...]

same space, different day

June 23, 2011 in 21-point Tic-Tac-Toe, Graphics

probably my best-looking version of so far (but is graph paper “cheating”?). [* this paragraph has no footnotes; that's a "star" standing for "dual" rather than an asterisk: "the *dual* of the two-dimensional projective space on the field of four elements"] meanwhile, i’ve played 21-tac-toe right on the board a couple times (versus self and [...]

post deleted

June 9, 2011 in Inactive, Job, Math 151

blag.

the rest of the story

June 5, 2011 in 21-point Tic-Tac-Toe

page two! and a word from our sponsor: MEdZ… math ed zine… is starved for money and attention so please give all you can. comments are welcome. particularly if anybody actually *plays* this thing. so far, i’ve played against myself, madeline, arlene, and john. most excitingly, madeline has played against arlene without my even *asking* [...]

twentyone point tic-tac-toe: drawing the board (alphabetical version)

June 5, 2011 in 21-point Tic-Tac-Toe

what we need is, first, {A, B, C, … , U}… or any other such set (of twentyone objects). next we seek to find a certain collection of twentyone 5-sets taken from our “alphabet” (i’ll start calling letters points sooner or later, so let me go ahead and start now). and, since i’ll be writing [...]