Here’s my tribute to today’s date: a palindrome with rotational symmetry!
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Appreciation Numbers
12/09/2019 — Happy Permutation Day!
Today we celebrate a Permutation Day! I call days like today permutation days because the digits of the day and the month can be rearranged to form the year.
Celebrate Permutation Day by mixing things up! Try doing things in a different order today. Just remember, for some operations, order definitely matters!
Appreciation Numbers
10/29/2019 — Happy Permutation Day!
Today we celebrate a Permutation Day! I call days like today permutation days because the digits of the day and the month can be rearranged to form the year.
Celebrate Permutation Day by mixing things up! Try doing things in a different order today. Just remember, for some operations, order definitely matters!
Appreciation Photography
Math Photo: The Origin
At first it bothered me, but now I appreciate the slow deformation of quadrilaterals from top left to bottom right in this coordinate system, centered at the sun.
Appreciation Numbers
09/21/2019 — Happy Permutation Day!
Today we celebrate a Permutation Day! I call days like today permutation days because the digits of the day and the month can be rearranged to form the year.
Celebrate Permutation Day by mixing things up! Try doing things in a different order today. Just remember, for some operations, order definitely matters!