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Description
Number Theory: A Very Short IntroductionNumber theory is the branch of mathematics that is primarily concerned with the counting numbers. Of particular importance are the prime numbers, the 'building blocks' of our number system. The subject is an old one, dating back over two millennia to the ancient Greeks, and for many years has been studied for its intrinsic beauty and elegance, not least because several of its challenges are so easy to state that everyone can understand them, and yet
Number theory is the branch of mathematics that is primarily concerned with the counting numbers. Of particular importance are the prime numbers, the 'building blocks' of our number system. The subject is an old one, dating back over two millennia to the ancient Greeks, and for many years has been studied for its intrinsic beauty and elegance, not least because several of its challenges are so easy to state that everyone can understand them, and yet no-one has ever been able to resolve them. But number theory has also recently become of great practical importance - in the area of cryptography, where the security of your credit card, and indeed of the nation's defence, depends on a result concerning prime numbers that dates back to the 18th century. Recent years have witnessed other spectacular developments, such as Andrew Wiles's proof of 'Fermat's last theorem' (unproved for over 250 years) and some exciting work on prime numbers. In this Very Short Introduction Robin Wilson introduces the main areas of classical number theory, both ancient and modern. Drawing on the work of many of the greatest mathematicians of the past, such as Euclid, Fermat, Euler, and Gauss, he situates some of the most interesting and creative problems in the area in their historical context. ABOUT THE SERIES:The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Binding Type: Paperback
Publisher: Oxford University Press, USA
Published: 08/01/2020
ISBN: 9780198798095
Pages: 176
Weight: 0.30lbs
Size: 6.60h x 4.30w x 0.40d
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Product Reviews
★★★★★ 5
Sturdiest surge protector I've seen
Style: 12ft Cord (Black), Pattern Name: Single
I was very surprised by the quality of this surge protector, especially for the price I payed.
Pros: Sturdy construction, and nice color. It's barely visible under my desk.
Very tight grip on whatever is plugged in so there is no risk of anything accidentally coming unplugged.
Thick gauge cord but surprisingly pliable so it bends easily for hiding and bundling up excess length.
Visible and satisfying LED light shows your electronics are protected.
Guarantee printed right on the box insuring your electronics in case of a damaging power surge.
Cons: Nothing that comes to mind!
I would strongly recommend this surge protector to anyone looking to manage lots of plugs for a computer, a large entertainment center or just a group of electronics plugged into the same outlet. I know it seems silly to be so enthusiastic over something as trivial as a surge protector but when it comes to protecting large investments you shouldn't put faith in a $5 bargain power strip. I'm buying Tripp Lite any time I need more outlet space from now on!
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Reviewed in the United States on March 4, 2014
★★★★★ 5
Does the trick well.
Style: Base Station Mount + Headphone Hanger, Style: Base Station Mount + Headphone Hanger
It's about 3D printer feel, so be sure to locate it where you won't bump it. It comes with everything you need to mount in a couple different configurations, which is a nice touch. The DAC fits perfectly and sets up nicely. Recommended for a polished look to keep your desk clear.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
This item is exactly what you expect by description.
Style: Base Station Mount + Headphone Hanger
Magnetic is plenty strong enough to hold headphone up. Works exactly as you would hope. Permanent mounting options included.
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Reviewed in the United States on May 4, 2026
★★★★★ 4
It works and the magnet is strong.
Style: Base Station Mount + Headphone Hanger
Strong magnet, looser fit than I like. Once I hang my headphones on the hanger it weighs it down enough to make the tab in the back not do it's job of keeping the base station from slipping out. I squeezed/pinched/bent the plastic together and it is working for now, but the plastic is flexible and I have a feeling I will be doing this again or needing to put some sort of support on the back. It came with a prybar, so I assumed it would be a tighter fit. Not so much.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Great pickup
Style: Base Station Mount + Headphone Hanger
Works perfectly. Original magnet was a little weak but I got it to worm
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Reviewed in the United States on April 4, 2026