This black t-shirt features a clever mathematical pun, perfect for anyone who appreciates a good laugh and a bit of nerdy humor. The design prominently displays the text '25.807 is the root of all √evil' in a clean, white font, creating a striking contrast against the dark background. Made from what appears to be soft, comfortable cotton, this tee is ideal for casual wear. Show off your wit and love for mathematics with this unique and eye-catching t-shirt. Whether you're a student, teacher, or just a fan of clever wordplay, this shirt is sure to spark conversation and turn heads.