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On Top Shelf
Fresh Pick
MEET CUTE MAGIC
📚 New Books This Week 📰 Latest News 🎪 Reader Games

Snowbound secrets, shifter wars, family lies, and epic battles — September delivers it all.

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Some promises cost you the one you love.

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The Temple of Kronos wants her dead. The Stoneslayer wants her destroyed. Neither will have her.

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A poisoned cousin, a five-year-old's life, and a family with too many secrets.

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Betrayal runs in her blood. Justice runs in his. Together, they burn it all down.

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"ANOTHER WINNER!"
From New York Times
Bestselling Cleo Coyle

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Running from her past, she finds a killer, a protector, and her faith.

FIBONACCI'S LIBER ABACI
By: Laurence Sigler

Springer Publishing Company
November 2003
On Sale: November 11, 2003
664 pages
ISBN: 0387407375
EAN: 9780387407371
Hardcover
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Non-Fiction

First published in 1202, Fibonacci's Liber abaci was one of the most important books on mathematics in the Middle Ages, introducing Arabic numerals and methods throughout Europe. Though it is known as an introduction to the Hindu number system and the algorithms of arithmetic that children now learn in grade school, "Liber abaci" is much more: an encyclopaedia of thirteenth-century mathematics, both theoretical and practical. It develops the tools rigorously, establishing them with Euclidean geometric proofs, and then shows how to apply them to all kinds of situations in business and trade - conversion of measures and currency, allocations of profit, computation of interest, alloying of currencies, and so forth. It is rigorous mathematics, well applied, and vividly described.

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Weekend Edition Saturday - July 16, 2011

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