The number pi, or π, is a mathematical constant used to calculate measurements in circles. The number represents the ratio of the circumference to the diameter. The name PI has has been used in puns and math geek jokes for years, and these sayings make fun novelty t-shirt designs. Find silly pi-themed t-shirts here for celebrating PI day or for spreading math geek joy any time of the year.
Celebrate PI Day on March 14 or any day with this fun I Love Pi Day t-shirt! You can celebrate the ultimate math lover holiday with this cute design that has a heart made of PI symbols! The full sentiment is "I Love PI Day" or "I Heart...
This is a fun graphic t-shirt that mashes up a sentiment of love with the mathematical constant PI. The design includes symbolic elements along with artfully arranged text. The main element of this t-shirt design is the text, which is arranged around a heart that surrounds the symbol...
This is a great text Pi Day t-shirt with a funny slogan for math nerds. The full slogan reads "They Call Me PI Because I'm Irrational and I Don't Know When To Stop". The arrangement of the different mashup fonts is fun and playful. The white text...
The first Thursday in May, today, May 4, 2023, is designated as World Password Day, a day meant to promote password best practices for a safer online experience. Using a secure password management program is a great way to get your passwords under control, keep them safe, and...
