Click the tartan to view its entry in The Scottish Registers of Tartans which includes registration details, restrictions, and registrant information.
Unregistered tartans may link to one of the web's online design environments for similar information.
For any questions about reproduction of designs or weaving of these tartans, please contact the registrant directly or via this website.
Pi Day
"Probably no symbol in mathematics has evoked as much mystery, romanticism, misconception and human interest as the number pi."
~ William L. Schaaf
March 14—written as 3/14 or 3.14—is celebrated as Pi Day, a perfect occasion to ponder this fascinating mathematical constant or simply indulge in a slice of pie, whether rationally or irrationally. Pi (π), the ratio of a circle’s circumference to its diameter, is approximately 3.14159 and has been represented by the Greek letter “π” since the mid-18th century, though it is sometimes spelled out as “pi.”
Mathematicians have been captivated by this irrational number for centuries, as its decimal form neither terminates (like 1/4 = 0.25) nor repeats in a predictable pattern (like 1/6 = 0.166666...). Both the Babylonians and Egyptians developed rough numerical estimates of pi, while ancient Greek scholars—most notably Archimedes—refined those approximations.
This soft-hued tartan was created for Pi Day in 2010, a year when mathematicians celebrated calculating pi beyond 200 billion digits. In a playful nod to the number itself, every color in the design was carefully chosen to start with the letter 'P'—Pewter Blue, Pacific Blue, Privet, Pineneedle, Pastoral Green, and Pastel Green. Since then, advances in modern computing have pushed the known digits of pi beyond an astonishing 202 trillion as of June 2024. Now that’s a lot of pi! 💚 💙 💛 π π π 🔢 🥧
Today's special date, March 14th, also known as Pi Day, is designated for the transcendental number, starting with the digits forming today's date (in the month/day/year system) = 3.14159 ...
Recall that pi is the ratio of a circle’s circumference to its diameter.
By designer Carol A.L. Martin "this whimsical tartan was created in honour of"Pi Day" March 14th, 2010. On that day mathematicians celebrated the calculation of pi to more than 200 billion digits by supercomputers! In this design, all colours begin with the letter "P".."
Pi (uppercase Π, lowercase π) is the sixteenth letter of the Greek alphabet, representing [p]. The letter "π" is the first letter of the Greek words "περιφέρεια" 'periphery' and "περίμετρος" 'perimeter', i.e. the circumference.
The designer used the colours: Pewter Blue, Pacific Blue, Privet, Pineneedle, Pastoral Green, Pastel Green
For those hunting for their own pi (or pie today), click the graphic to find out more about the eternal hunt for the infinite.