It is a design by SymbolGrafix. The tattoo artist is Masato Kaisawa from Mexico City. I did it at special Pi day, to pay my respects to mathematics as a symbol of unity, curiosity and the pursue of knowledge. Also, I am a physics engineer.
this is a tattoo i wanna get one day. i love mathematics really, even though i hate the tests and exams and i suck at it. and this pi tattoo is just so cool, i think i'm gonna tattoo this on one of my ankles.