This shirt features a heart-shaped curve defined by an implicit equation, precisely crafted to symbolize love for mathematics. The shape is not decorative, it emerges from a real mathematical expression involving absolute values, symmetry, and polar transformation into Cartesian coordinates.

Ideal for all math lovers who want to wear their enthusiasm with pride, because sometimes, love really is a function of variables.

• Made from soft, 100% combed cotton (marle colors include viscose)
• Midweight fabric with a smooth finish (150 g/m²)
• Pre-shrunk and cut for a regular fit
• Crew neck with ribbed collar and side-seamed build
• Reinforced with double-needle stitching and shoulder taping

Each item is printed on demand in order to minimize waste and maximize meaning.
Thanks for supporting thoughtful, math-driven design.

Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, phthalates and formaldehyde level requirements.

In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.