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£57.70
per cushion
 

JOSEPH FOURIER AND FOURIER SERIES CUSHION

Qty:
Throw Cushion 50.8 x 50.8 cm (20" x 20")
-£11.85
-£18.95

About Cushions

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Size: Throw Cushion 50.8 x 50.8 cm (20" x 20")

Accent your home with custom cushions from Zazzle and make yourself the envy of the neighbourhood. Made from high-quality Simplex knit fabric, these 100% polyester cushions are soft and wrinkle-free. The heavyweight stretch material provides beautiful colour definition for your design while also being the perfect complement to your sofa!

  • Dimensions: 50.8 cm x 50.8 cm (20" x 20") (square)
  • Simplex knit fabric; 100% polyester; wrinkle-free
  • Hidden zipper enclosure; synthetic-filled insert included
  • Machine washable
  • Made in the USA
Creator Tip: To ensure the highest quality print, please note that this product’s customisable design area measures 50.8 cm x 50.8 cm (20" x 20"). For best results please add 1.27 cm (0.5") bleed..

About This Design

JOSEPH FOURIER AND FOURIER SERIES CUSHION

JOSEPH FOURIER AND FOURIER SERIES CUSHION

Joseph Fourier Fourier analysis – a term named after the French mathematician Joseph Fourier, is the process of breaking down a complex function and expressing it as a combination of simpler functions. The opposite process of combining simpler functions to reconstruct the complex function is termed as Fourier Synthesis. Mostly, the simpler functions are chosen to be sine and cosine functions. Thus, the term “Fourier analysis” expresses a complex function in terms of sine and cosine terms and the term “Fourier Analysis” reconstructs the complex function from the sine and cosine terms. Frequency is the measure of number of repetitive occurrences of a particular event. By definition, a sine wave is a smooth curve that repeats at a certain frequency. Thus, the term “frequency” and sine are almost synonymous. A cosine wave is also a sine wave but with 90* phase shift. Therefore, when you talk about sine and cosine functions, you are taking in terms of “frequencies”. That is why in signal processing, the Fourier analysis is applied in frequency (or spectrum) analysis. Fourier series: Applied on functions that are periodic. A periodic function is broken down and expressed in terms of sine and cosine terms. In mathematics, the term “series” represents a sum of sequence of numbers. For example we can make a series with a sequence of numbers that follows Geometric Progression (common ratio between the numbers).

Customer Reviews

4.8 out of 5 stars rating9.4K Total Reviews
8189 total 5-star reviews893 total 4-star reviews183 total 3-star reviews70 total 2-star reviews96 total 1-star reviews
9,431 Reviews
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5 out of 5 stars rating
By Gary C.21 February 2021Verified Purchase
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Excellent Nice Feeling. Excellent Just What They Do Make It Match It That I Draw It Out Front And Back
5 out of 5 stars rating
By N.23 May 2019Verified Purchase
Throw Cushion, Throw Cushion 50.8 x 50.8 cm (20" x 20")
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Excellent quality you get what you ppay for. Everything as shown.
5 out of 5 stars rating
By L A.1 August 2021Verified Purchase
Throw Cushion, Throw Cushion 40.6 x 40.6 cm (16" x 16")
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I was really pleased with the quality of these cushions. I bought two large ones and two small ones and they were just as expected, well possibly better! The cotton fabric is perfect for outdoors and the personalization is true to the design I created online. Very happy with the service too - considering they came all the way from the States - they were delivered on time and in good condition. No complaints - very happy! Excellent - exactly as per design.

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Other Info

Product ID: 189800434681169552
Created on 25/07/2014, 12:55
Rating: G