Wear your heart on your back instead of your sleeve. It's been a long time since high school math for some of us, so we got WolframAlpha to help us out on this shirt design. We knew what we wanted to do, and we knew that there were multiple ways to do it. WolframAlpha elegantly graphed a bunch of our options for us, and we went with this one. We love it. We hope you love it. And we hope you love someone who also loves it (and you). Equation in white on front and implicit heart plot in white and red on the back of this black, 100% cotton t-shirt.
male, female - adult