Euler explained: summation T-Shirt

Need a little more than Euler's identity? This shirt is for you. Starting with the fundamental definition of the exponential function this formulation steps through the Euler formula on the way to the Euler identity. Analysis, complex function theory and number theory brought together in a beautiful symphony of insight and erudition. The beautiful typography of LaTeX enhances the appeal. Make a statement about your fondness of clarity and aesthetics each time you wear this shirt. Change the style and color to further express yourself.