Although it's only Wednesday, it is none too soon to start planning to celebrate Pi Day this Saturday, March 14. Why is this mathematical constant feted on Saturday? That date is abbreviated 3/14, and pi is roughly 3.14.
How to celebrate this irrational number? You could memorize as many digits of pi that you can and astound your friends. The numerical value of pi truncated to 50 decimal places is, according to Wikipedia:
3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510
However, since it's Saturday, a party may be a better route. Since this is pi, then serving pie seems a natural idea. Pizza pie would work, but when you're talking pi, Greek food seems more appropriate. Fortunately, the Greeks have a dish that fits perfectly, spanakopita. Recently I made this spinach and cheese pie pictured below. Delicious stuff. Round-out dinner with olives and hummus, and you find yourself enjoying both spinach and math at the same time, which for many of us is a staggering feat, heretofore unimagined.