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$11.40
per keychain
The Euler formula Key Ring
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Style
Aluminum Circle
+$1.00
+$1.00
+$24.65
+$24.65
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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 rating5.4K Total Reviews
5,407 Reviews
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By Zali O.9 August 2023 • Verified Purchase
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These are so cute and beautiful made. Printing is good clear
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By Jessica K.2 March 2023 • Verified Purchase
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These keychains were perfect for our 5th grade traveling volleyball team. I just added a tassle, and they were the perfect gift! .
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Product ID: 146000667320437650
Posted on 19/09/2012, 6:47 AM
Rating: G
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