March has been a busy month with Square Root Day and Pi Day. But for of those who didn’t celebrate Pi Day, don’t worry! You can still celebrate it on July 22!

Pi Day and Pi Approximation Day are two holidays held to celebrate the mathematical constant π (pi). Pi Day is observed on March 14, 3.14 being the first three digits of pi. It is also Albert Einstein's birthday. It can also be celebrated on March 4 (when 14% of the month of March has elapsed).

Pi Approximation Day is observed on July 22, due to π being roughly equal to 22/7.

Pi Minute is also sometimes celebrated on March 14 at 1:59 p.m. If π is truncated to seven decimal places, it becomes 3.1415926, making March 14 at 1:59:26 p.m., Pi Second (or sometimes March 14, 1592 at 6:53:58 a.m.).

Here’s something a little interesting: On Pi Day, 2004, Daniel Tammet calculated and recited 22,514 decimal digits of pi. Wow!

In the New Scientist magazine, one of March’s articles was ‘Rise of the Robogeeks.’

The article talks about Aaron Sloman’s intentions to create a robot mathematician.

You can read the article at http://www.newscientist.com/article/mg20126971.800-rise-of-the-robogeeks.html?full=true.