Which major educational retailer launched the 'Infinite Possibilities' campaign in 2018, featuring limited-edition mathematical tools that sold out within 3.14 hours of release on Pi Day?

Pi Day (March 14th or 3/14) has evolved from a mathematical celebration to a major retail event for educational suppliers and bookstores. This quirky date, representing the mathematical constant π (3.14159...), has become an opportunity for creative product launches and promotional campaigns. Test your knowledge about how mathematics-focused retailers have leveraged this numerical holiday to boost customer engagement and create memorable brand experiences.

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Texas Instruments with graphing calculators featuring pi-themed designs and 314 pre-loaded math problems
Staples with their Mathematics Excellence Collection, including compasses that could draw perfect circles up to 3.14 meters in diameter
Barnes & Noble with exclusive pi-themed editions of famous mathematics books and limited-edition geometric drawing sets
Office Depot with their Pi Precision Series featuring rulers and protractors with measurements precise to 3.14 decimal places