HE=√-1 (HE is Imaginary) [HE = Square Root of -1] Mouse Pad
HE=√-1 (HE is Imaginary) [HE = Square Root of -1] HE = the Square root of negative one. He is imaginary. HE=√-1. A parody of the popular HE>i shirts and stickers. Perfect for the atheist, agnostic, secular humanist, rationalist, or scientist in your life!