Codes: How to Make Them and Break Them (Murderous Maths) (Paperback)

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• This item: Codes: How to Make Them and Break Them (Murderous Maths) by Kjartan Poskitt

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• The Phantom X (Murderous Maths) by Kjartan Poskitt

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• Do You Feel Lucky? The Secrets of Probability (Murderous Maths) by Kjartan Poskitt

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The Phantom X (Murderous Maths) by Kjartan Poskitt 4.5 out of 5 stars (2)  £4.74

Do You Feel Lucky? The Secrets of Probability (Murderous Maths) by Kjartan Poskitt 4.5 out of 5 stars (2)  £4.99

Murderous Maths - Fractions and Averages: The Mean and Vulgar Bits by Kjartan Poskitt 4.7 out of 5 stars (3)  £4.99

The Perfect Sausage and Other Fundamental Formulas (Murderous Maths) by Kjartan Poskitt 4.8 out of 5 stars (4)  £4.74

Numbers, the Key to the Universe (Murderous Maths) by Kjartan Poskitt 4.5 out of 5 stars (2)  £4.99

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Product Description
Will show readers how to encode/decode their own messages in as many ways as possible. Examples of differently coded messages will also fit in well with the diverse range of the usual MM characters. Contents would include: • Disguised codes (e.g. see the last para of synopsis) • Scrambled codes (where the order of letters is mixed up) • Substitution codes (where letters are replaced by other letters or symbols or just 14 21 13 2 5 18 19 ) • Some history of how codes have been used in the past, from ancient Roman times to cracking the WW2 German Enigma machine. • Other message systems such as morse code, flags and also activity ideas such as making cut-out stencils that work with code grids. Although the other MM books deliberately avoid exercises or setting questions, this title lends itself to setting messages that need decoding by the reader, possibly leading up to a mega message to decode at the end. Can you see this very last paragraph is coded? (Read all the fourth words). The book demonstrates other codes you've probably never ...

1 Review 5 star:    (0) 4 star:  (1) 3 star:    (0) 2 star:    (0) 1 star:    (0)           Average Customer Review 4.0 out of 5 stars (1 customer review)		Share your thoughts with other customers: Create your own review
Most Helpful Customer Reviews   5 of 5 people found the following review helpful: 4.0 out of 5 stars '..dedicated to a particular branch of mathematics - in this case, we have `cryptanalysis', 7 Mar 2007 By  A B CeDar - See all my reviews (TOP 50 REVIEWER)    `Guarantee - this book contains no nasty exercises and no boring sums' Each of the books in this series is dedicated to a particular branch of mathematics - in this case, we have `cryptanalysis'. `Is maths making you miserable? Are you confused by ciphers and baffled by binary? Let `Murderous Maths' take the agony out of cryptanalysis and you'll be a code-cracking genius in no time. The Pure Mathematicians explain how a computer can make buying shoes safe and the secrets of ENIGMA are revealed. Plus, find out Dolly Snowlips' waist size and a tatty tablecloth can help the Gangsters with their latest money-making scheme.' The colourful, humorous cover opens to 160 pages, split over 11 chapters:- A sneaky start Disguised messages Scrambling codes Substitution codes One-time pads Grid codes The Enigma machine Number messages Pig pens Double codes The uncrackable credit card code written in a variety of fonts in the usual Kjartan Poskitt entertaining style, e.g.:- `As you launch yourself into this extraordinary book, notice that arranged within the main text there are many cunningly concealed kinds of trick messages, only you don't see any just yet. Hah! Did you spot it? No? We hate to tell you this but you have `already' read a secret message. Yes indeed, a hidden announcement of national importance was sneaked into that first sentence! It uses one of the easiest sorts of codes, but don't worry if you didn't see it as we'll explain it soon............' Black and white illustrations/cartoons throughout. Maths as you have never seen it before! Comment Comment | Permalink | Was this review helpful to you? Yes No (Report this) Share your thoughts with other customers: Create your own review › See all customer reviews...		Ad feedback   Search Customer Reviews Only search this product's reviews

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