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# Tag Archives: recreational mathematics

## A Case of Accidental Symmetry

The other day I was thinking about putting dominoes onto a 4-by-4 grid without any of the dominoes contacting each others’ sides. I wanted to know how many dominoes you could fit onto the 4-by-4 grid in this way, and … Continue reading

Posted in polyominoes
Tagged algorithms, binomial coefficients, combinatorics, domino, dominoes, grids, math, mathematics, maths, polyominoes, Python, rec math, recreational math, recreational mathematics, symmetry
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## My Grandmother

In college I learned that there are different sizes of infinity (actually I had heard this in high school, but didn’t understand what it meant, nor had I heard anything about why it was true). I thought that I could … Continue reading