ripple

Some time ago, I tried coming up with my own water-drop/ripple simulation for making a small animated-gif background (akin to the moving backgrounds, like clouds, ocean breakers, etc, that are so popular as church lyric-projector backgrounds right now). Basically, I had a sinusoidish curve, decaying with radius and time; I simulated a dozen or so of these drips, usually centered off-picture, and added the curves; it made for some nice randomish moving water-surface. (Sorry, I cannot find where I put it for now.)

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PseuDoKu


“PseuDoKu” = What I’m calling variants of sudoku, whether simplificiation of or extrapolation from the original.

My daughter enjoys playing the “number game” on my phone with me; I tell her where to put the next solved number (“put a 2 between the 5 and the 6 in that grey box”, etc.). I’ve thus started doing simpler grids on the chalkboard — with just a 4×4 grid, and one number missing from each row or column, and haven’t made the logic require one-of-each-per-2×2. The other day, she asked for “1 to 5” instead of “1 to 4”: since I haven’t introduced her to the boxes, the fact that 5×5 cannot have the sub-box regions is irrelevant.

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PseuDoKu Details

What I’m calling variants of sudoku, whether simplificiation of or extrapolation from the original.

My daughter enjoys playing the “number game” on my phone with me; I tell her where to put the next solved number (“put a 2 between the 5 and the 6 in that grey box”, etc.). I’ve thus started doing simpler grids on the chalkboard — with just a 4×4 grid, and one number missing from each row or column, and haven’t made the logic require one-of-each-per-2×2. The other day, she asked for “1-5” instead of “1-4”: since I haven’t introduced her to the boxes, the fact that 5×5 cannot have the sub-boxes is irrelevant.

Continue reading PseuDoKu Details