In Strength in What Remains , Tracy Kidder gives us the story of one man’s inspiring American journey and of the ordinary people who helped him, providing brilliant testament to the power of second chances. Deo arrives in the United States from Burundi in search of a new life. Having survived a civil war and genocide, he lands at JFK airport with two hundred dollars, no Englis...(展开全部)

"Numbers in the Dark" is a collection of short stories covering the length of Italo Calvino's extraordinary writing career, from when he was a teenager to shortly before his death. They include witty allegories and wise fables; a town where everything has been forbidden apart from the game of tip-cat; a pitiable tribe watching the flight paths of guided missiles from outside th...(展开全部)

"Numbers in the Dark" is a collection of short stories covering the length of Italo Calvino's extraordinary writing career, from when he was a teenager to shortly before his death. They include witty allegories and wise fables; a town where everything has been forbidden apart from the game of tip-cat; a pitiable tribe watching the flight paths of guided missiles from outside th...(展开全部)

This book is about all kinds of numbers, from rationals to octonians, reals to infinitesimals. It is a story about a major thread of mathematics over thousands of years, and it answers everything from why Hamilton was obsessed with quaternions to what the prospect was for quaternionic analysis in the 19th century. It glimpses the mystery surrounding imaginary numbers in the 17t...(展开全部)

This is a textbook for pre-service elementary school teachers and for current teachers who are taking professional development courses. By emphasizing the precision of mathematics, the exposition achieves a logical and coherent account of school mathematics at the appropriate level for the readership. Wu provides a comprehensive treatment of all the standard topics about number...(展开全部)

Number theory proves to be a virtually inexhaustible source of intriguing puzzle problems -- interesting to beginning and advanced readers. Divisors, perfect numbers, the congruences of Gauss, scales of notation, the Pell equation, many other aspects produce ingenious puzzles. Solutions to all problems.

This is a textbook for pre-service elementary school teachers and for current teachers who are taking professional development courses. By emphasizing the precision of mathematics, the exposition achieves a logical and coherent account of school mathematics at the appropriate level for the readership. Wu provides a comprehensive treatment of all the standard topics about number...(展开全部)

Number theory proves to be a virtually inexhaustible source of intriguing puzzle problems -- interesting to beginning and advanced readers. Divisors, perfect numbers, the congruences of Gauss, scales of notation, the Pell equation, many other aspects produce ingenious puzzles. Solutions to all problems.