Tap / click on image to see more RealViewsTM
$10.75
per keychain
The Euler formula Key Ring
Qty:
Style
Aluminum Circle
+$1.00
+$1.00
+$23.35
+$23.35
About Keychains
Sold by
About This Design
The Euler formula Key Ring
Show your love of math and your appreciation for your math education with this subtly tasteful mousepad. Euler's identity involves the special numbers 0 and 1 and relates the transcendental numbers e and pi to integers. This stems from Euler's identity which itself is a consequence of the Taylor series representations. A perfect gift for your favourite polymath, a dear friend or yourself.
Customer Reviews
4.6 out of 5 stars rating5.6K Total Reviews
5,556 Reviews
Reviews for similar products
5 out of 5 stars rating
By linda f.18 June 2025 • Verified Purchase
Premium Round Keychain, Small (3.65 cm)
So cute and this is perfect!!!
from zazzle.com (US)
5 out of 5 stars rating
By T.29 May 2025 • Verified Purchase
Metal Circle Keychain, 5.08 cm
A huge big THANK YOU to the designer Little Linda Pinda. This was a special order and it turned out so lovely. Very happy. And the delivery was super quick too.
5 out of 5 stars rating
By T.29 May 2025 • Verified Purchase
Metal Circle Keychain, 5.08 cm
A huge big THANK YOU to the designer Little Linda Pinda. This was a special order and it turned out so lovely. Very happy. And the delivery was super quick too.
Tags
Other Info
Product ID: 146000667320437650
Added on 19/9/12, 6:47 am
Rating: G
Recently Viewed Items