MathRelaxing
Pi Day Crewneck Sweatshirt, Random Walk of Pi Digits, Math Art Sweatshirt, Gift for Math Teacher or Nerd
$46.99–$51.99 USD
Pi Day 2027 falls on Sunday, March 14. This crewneck shows the first 9,000 digits of pi as a walk: each digit from 0 to 9 sends the path in one of ten directions, so the number draws a single wandering line, coloured from teal to gold. Nobody drew it. The digits did. DETAILS - Unisex heavy blend crewneck (Gildan 18000), 50% cotton and 50% polyester, classic fit with a ribbed collar - Colours: Navy and Black. Sizes S to 3XL - Full-colour print on the front, made to order - Care: machine wash cold, tumble dry low, do not iron A gift for math teachers, mathematicians, engineers and anyone who counts the days to March 14. Designed and generated by MathRelaxing. ORDER PREPARATION Made to order. Please allow 7–10 business days for order preparation and production before dispatch. Shipping transit time is additional; see the delivery estimate at checkout.
About this piece
Pi Day Crewneck Sweatshirt, Random Walk of Pi Digits, Math Art Sweatshirt, Gift for Math Teacher or Nerd is made to order by our production partner and sold by MathRelaxing, the math art studio of The Books Wanderer. Because it is made after you order, delivery takes longer than for a product kept in stock. Delivery for your country and the shipping total are calculated at the cart, and checkout is secured with PayPal.
- Category: MathRelaxing
- Printed to order in the US by our production partner · choose your country on this page to confirm delivery
- Faulty or wrong items refunded in full within 30 days
- Secure checkout · shipping calculated by destination at cart
Available options (12)
- S / Navy — $46.99 USD
- S / Black — $46.99 USD
- M / Navy — $46.99 USD
- M / Black — $46.99 USD
- L / Navy — $46.99 USD
- L / Black — $46.99 USD
- XL / Navy — $46.99 USD
- XL / Black — $46.99 USD
- 2XL / Navy — $49.99 USD
- 2XL / Black — $49.99 USD
- 3XL / Navy — $51.99 USD
- 3XL / Black — $51.99 USD
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Buy Pi Day Crewneck Sweatshirt, Random Walk of Pi Digits, Math Art Sweatshirt, Gift for Math Teacher or Nerd
Select your preferred option on this page, add it to your cart, and complete checkout when you are ready. Questions about fit or materials are welcome before you order.



