Ramanujan's infinite pi formula is a rapidly converging series for calculating pi with extraordinary precision. It showcases deep number-theoretic insights and is widely used in computational mathematics for high-precision calculations of pi.

• 100% combed and ring-spun cotton
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping