Thursday, May 31, 2012

Imaginary birthdays

Ulaanbaatar, Mongolia
Thursday, May 31, 2012

I have this student who is fascinated with imaginary numbers and since today was his birthday (and the last day of classes) I thought we'd celebrate with an imaginary theme. Sadly, the frosting got a bit messed up (ALWAYS wait until your cake is fully cooled...) but hopefully the math message makes it through:

Happy 17i4!