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Postcard: Zernike polynomial Z(8,4) white back Postcard

4.9 out of 5 stars rating
15696 Total Reviews |
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18 pt thickness / 120 lb weight Soft white, soft eggshell texture
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Postcard: Zernike polynomial Z(8,4) white back Postcard

Postcard: Zernike polynomial Z(8,4) white back Postcard

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 postcard features the Zernike polynomial of order 8 and angular frequency 4, a complex valued function..
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Albuquerque, New Mexico, United States
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Customer Reviews

4.9 out of 5 stars rating15.7K Total Reviews
14301 total 5-star reviews1004 total 4-star reviews201 total 3-star reviews72 total 2-star reviews118 total 1-star reviews
15,696 Reviews
Reviews for similar products
5 out of 5 stars rating
By Heather D.20 September 2021 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Zazzle Reviewer Program
It was exactly like the pic on Zazzle. Size was good to write on the back. Image was great. Lovely colours and clear
5 out of 5 stars rating
By Dash K.23 January 2024 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Zazzle Reviewer Program
I was pleased with the excellent quality of the calendar and the high quality of the card stock used. I will definitely order these postcards again. The printing was excellent. I was so pleased!
5 out of 5 stars rating
By Lisa B.26 August 2019 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Zazzle Reviewer Program
Such a huge range of different frogs available, which made my choices very difficult and now the reason I have a whole draw full of cards and postcards! Much better quality than you can buy in the shops and they are exactly on the subject I love and adore too.

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Other Info

Product ID: 239437585426779959
Posted on 14/06/2009, 1:03 PM
Rating: G