Sell on Zazzle
Tap / click on image to see more RealViewsTM
£6.55
per keychain
 

Keychain: Zernike polynomial Z(8,4) Key Ring

4.6 out of 5 stars rating
5553 Total Reviews |
by
Qty:
Style
Aluminum Circle
+£0.55
+£0.55
+£14.10
+£14.10

Other designs from this category

About Keychains

Sold by
Keychain
Create your own from scratch

Style: Metal Circle Keychain

Keep your keys safe and spectacular with this sturdy aluminium keyring from Zazzle. Beautifully printed on both sides, you can choose from thousands of designs, or personalise it with your own photos, text or unique designs. Label your car keys or keep a family photo of loved ones close to you at all times, these personalised keyrings are light and waterproof.

  • Dimensions:
    • Diameter: 2"
    • Depth: 0.045"
    • Weight: 0.05 oz.
  • Full-colour, full-bleed printing
  • Silver coloured metal key ring with plastic snap ring
  • Light and waterproof
Designer Tip: To ensure the highest quality print, please note that this product’s customisable design area measures 2". For best results please add 1/16" bleed

About This Design

Keychain: Zernike polynomial Z(8,4) Key Ring

Keychain: Zernike polynomial Z(8,4) Key Ring

In 1933, Nobel Laureate Frits Zernike published a set of orthogonal polynomials designed to span the unit disc for the purpose of describing the aberrations of a circular mirror. Today these same polynomials are used to codify the imperfections in optical systems such as telescopes. Ophthalmologists and optometrists use them in wavefront guided vision correction. This magnet features the Zernike polynomial of order 8 and angular frequency 4, a complex valued function.
Math art
Bronze
Artwork designed by
Albuquerque, New Mexico, United States
View their Store

Customer Reviews

4.6 out of 5 stars rating5.6K Total Reviews
4307 total 5-star reviews810 total 4-star reviews219 total 3-star reviews116 total 2-star reviews101 total 1-star reviews
5,553 Reviews
Reviews for similar products
5 out of 5 stars rating
By linda f.18 June 2025 • Verified Purchase
Premium Round Keychain, Small (1.44")
So cute and this is perfect!!!
from zazzle.com (US)
1 out of 5 stars rating
By Seamus O.18 December 2024 • Verified Purchase
Metal Circle Keychain, 2"
Very poor quality. Almost unreadable to the naked eye, imafes on store are much clearer, very misleading.
5 out of 5 stars rating
By Paula N.11 July 2023 • Verified Purchase
Metal Circle Keychain, 2"
Zazzle Reviewer Program
bought as birthday present for husband - Hawaiian theme, had to buy one for me also. exactly as advertised - perfect little gift

Tags

Keychains
zernikediscpolynomialscircleorthogonaloverunittelescopes
All Products
zernikediscpolynomialscircleorthogonaloverunittelescopes

Other Info

Product ID: 146210567012114943
Created on 14/06/2009, 11:38
Rating: G