Square Spiral variation 1, by Keith Enevoldsen, U.S. (This usually produces Jackson Pollacks, but there isĪ chance that it will produce a Michelangelo.) Depending on what random numbers the computer chooses, you may get something like one of the three images above. The "bullring" is from Ian Stewart's book. "Another Fine Math You've Got Me Into." by Ian StewartĬontains an interesting chapter about curves like these. Note: The first four "entries" shown here were among some samples provided by Keith Enevoldsen in announcing the Logo 15-word challenge.įor Index of Other Contest Entries slalom scrolls In MSW Logo, you can set the screen size. The effect is strikingly bold with a square screen and more complex with a non-square screen. The effect will depend on your screen size. It seems simple, but it has a suprising effect, based on WRAP mode and PX mode. Square Spiral, by Yehuda Katz, Israel (9 words) This cheerful entry reminds me of circus jugglers and clowns doing cartwheels. This requires PENREVERSE (PX) and a big pen. Elhefni, Egypt (15 words)įor rt 72]ĭotimes rt 72] (MicroWorlds)Ĭircus (Ring variation 2), by Olga Tuzova, Russia (14 words) This looks remarkably like a person is sketching withĪ pencil. Repeat 360 [setxy (sin(327 * repcount)) * 150 (sin(66 * repcount)) *ĭotimes [setpos list (sin(254 * :i)) * 150 (sin(201 * :i)) *Ĭhange the factors to get lots of different designs. Lissajous variations, by Samuel Kilchenmann, Switzerland (15 words) The moire effect isn't as strong if you try to shrink it. This is slow, but it has very beautiful and complex moire patterns. Layers, by Alessio Plebe, Italy (15 words)įor pu home pd]ĭotimes pu home pd] This will work without modification in absolutely all Logo implementations. The 6 can be replaced with 1 to 7 for other flowers.įor numbers greater than 7, the patterns repeat.
Please see the project details for the project background, extra code, and more graphics.
MicroWorlds sometimes requires slightly different code, as noted below in the Winners' section, and cannot run code using the command "px" (which reverses the color).Ĭlick here for information on downloading free versions of Logo.įive Rose or Starfish, by, Italy (and, Australia) - only 8 words!!ĭotimes (MicroWorlds) The one-line codes work as written in MSWLogo and UCBLogo. "Write a Logo one-liner using 15 or fewer words, not counting square brackets and parentheses, to produce the most beautiful, complex, and interesting picture." Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a nonprofit organization.The challenge was announced and judged by Keith Enevoldsen, spring 1997: