Tap / click on image to see more RealViewsTM
CA$8.95
per keychain
Keychain: Zernike polynomial Z(8,4) Keychain
Qty:
Style
Aluminum Circle
+CA$0.80
+CA$0.80
+CA$19.45
+CA$19.45
About Keychains
Sold by
About This Design
Keychain: Zernike polynomial Z(8,4) Keychain
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.
Customer Reviews
4.6 out of 5 stars rating5.5K Total Reviews
5,482 Reviews
Reviews for similar products
5 out of 5 stars rating
By linda f.June 18, 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 J.December 1, 2024 • Verified Purchase
Metal Circle Keychain, 5.08 cm
Beautifully made, picture has excellent qualiry. I just love it! Thank you!
5 out of 5 stars rating
By Jonothon H.April 24, 2023 • Verified Purchase
Metal Circle Keychain, 5.08 cm
Zazzle Reviewer Program
I was amazed at both price and quality of the picture on this. Also having both sides allowed me to contrast his age from young to mature for his most special send off. Thank you for making me look like the hero when you guys were. Precise, and exactly centered
Tags
Other Info
Product ID: 146210567012114943
Designed on 2009-06-14, 11:38 AM
Rating: G
Recently Viewed Items
