




Pi  Unleashed [Paperback]
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Item description for Pi  Unleashed by Jorg Arndt & Christoph Haenel...
Never in the 4000year history of research into pi have results been so prolific as at present. In their book Joerg Arndt and Christoph Haenel describe in easytounderstand language the latest and most fascinating findings of mathematicians and computer scientists in the field of pi.Attention is focussed on new methods of computation whose speed outstrips that of predecessor methods by orders of magnitude.The book comes with a CDROM containing not only the source code of all programs described, but also related texts and even complete libraries. Promise Angels is dedicated to bringing you great books at great prices. Whether you read for entertainment, to learn, or for literacy  you will find what you want at promiseangels.com!
Item Specifications...
Pages 270
Est. Packaging Dimensions: Length: 0.75" Width: 6" Height: 9" Weight: 1 lbs.
Binding Softcover
Release Date Jan 25, 2001
Publisher Springer
ISBN 3540665722 ISBN13 9783540665724

Availability 0 units.

More About Jorg Arndt & Christoph Haenel


Jorg Arndt was born in 1964.
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Reviews  What do customers think about Pi  Unleashed?
 One of many recent pieces on pi Nov 5, 2004 
Why the flood of books on pi (do a search, you'll see)? And why calculate its decimal expansion to enormous numbers of places? Is number mysticism having a revival?
Certainly there are many fascinating theorems involving pi, which is one of the two most important transcendental numbers (the other being e) and which shows up unexpectedly in many different branches of mathematics. These books are well worth reading to learn those theorems, those lovely, unexpected formulas, and the interesting history.
If you are a trained mathematician, the best of these books by far is the recent one by Eymard and Lafon, but it is very difficult.
My complaint about all these books is that not one of them proves that pi exists! I mean pi is defined as the ratio of the circumference to the diameter of any circle; in order for that definition to make sense, one must prove that ratio to be constant. But that ratio is only constant in Euclidean geometry, not hyperbolic or elliptic geometries, so the proof depends on the Euclidean parallel postulate and is not at all obvious.
There is a proof in the book by Moise "Elementary Geometry from an Advanced Viewpoint."
This book is a good one, its main competition being the good one by Posamentier and Lehmann.    Have your pi and eat it too Dec 9, 2001 
A must have for the pi gourmet. Ever since reading Beckman's "History of Pi" years ago, I have had a love for pi. Finding Blatner's "The Joy of Pi" only added to it. With "PiUnleashed", Arndt and Haenel help to sate the appetite for more pi left by the first two books. While Beckman weaves the tale of pi as only he can in his book, and Blatner does indeed bring joy to the pi lover in the way he pulls together so many aspects of pi, Arndt and Haenel help to satisfy the number junkie who likes to experience pi, not just read about it. This book was so good that after giving it a good sniffing, I just had to roll all over in it to get its scent all over me. The book covers the many roads to pi, from the oldest arctangent series and product series to the latest series used for calculating hundreds of billions of digits. For the algorithm junkie, it has 17 whole pages of nothing but pi formulas, followed by thousands of digits of pi in decimal and hexadecimal as well as continued fraction format. The mathematics is deeper than Beckman or Blatner, but nothing beyond college level. The CD that comes with the book contains 400 million digits of pi along with a whole slew of programs on pi or high precision numbers that I just had to dig into. I know I will be spending many weeks chewing on all the wonderful new bones offered in this book.   Write your own review about Pi  Unleashed
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