e to the i Pi

Studio Pouches


West Molesey, United Kingdom

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Sizing Information

Size Perfect for
Small 6 x 4 inch Coins/cash, Cards, Lip gloss, Keys
Medium 9.5 x 6 inch Phone, Pencils, Sunglasses, Cosmetics, Toiletries, Travel documents, Pocket camera
Large 12.5 x 8.5 inch Art supplies, Medicine, Stationery, iPad (most sizes), Tech accessories, Hair brush, Purse


  • Vibrant, high-quality double-sided prints that won’t fade
  • Durable 100% polyester canvas with a metal zipper. Fully lined for added strength
  • Various sizes perfect for holding coins, cards, phone, pencils, cosmetics
  • Cold machine wash and low tumble dry
  • Makes the perfect gift for family, friends, or yourself. (You deserve it.)

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Cases & Skins

Wall Art

Home Decor



Artist's Description

Euler fans! Celebrate your favourite theorem with this ultimate nerd extravaganza! All calculations certified 100% rigorous!

For non-afficionados: this design celebrates the famous ’Euler’s Identity’ – a particularly surprising result that links three seemingly unrelated quantities:
- pi, the ratio of a circle’s circumference to its diameter
- e, the basis of ‘natural logarithms’. (e^x is the only function whose gradient is itself)
- i, the ‘imaginary’ square root of -1
The identity is a cute surprise that emerges as a corollary to a more useful fact, that e^ix = cos x + i sin x. The proof of this formula is briefly demonstrated in this design.

desktop tablet-landscape content-width tablet-portrait workstream-4-across phone-landscape phone-portrait
desktop tablet-landscape content-width tablet-portrait workstream-4-across phone-landscape phone-portrait

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