How fast can you calculate? Would you like to be faster? This book presents the time honored tricks and tips of calculation, from a fresh perspective, to boost the speed at which you can add -- whether a couple of numbers, or columns so long an accountant may faint. Find out how to subtract, multiply, divide, and find square roots more quickly.
How fast can you calculate? Would you like to be faster? This book presents the time honored tricks and tips of calculation, from a fresh perspective, to boost the speed at which you can add -- whether a couple of numbers, or columns so long an accountant may faint. Find out how to subtract, multiply, divide, and find square roots more quickly.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Trevor Lipscombe graduated with an undergraduate degree in theoretical physics from Queen Mary College, University of London, and then obtained a doctorate in theoretical physics from the University of Oxford. He is the author, with Alice Calaprice, of "Albert Einstein: A Biography," and sole author of "The Physics of Rugby," which was selected as one of the best ten physics books of 2009. He edited the critical edition of Saint John Henry Newman's novel "Loss and Gain." Trevor was a postdoctoral researcher at the Levich Institute at the City College of New York, but has also worked in a homeless shelter, a physics journal, and three university presses. He remains fond of finding ways to present science-related materials simply.
Inhaltsangabe
* Preface * Introduction * Challenge * 1: Arithmetical Advice * 2: Speedier Sums and Subtractions * Interlude I: The Magic of 111,111 * 3: Accounting for Taste -- Adding Columns Quickly * Interlude II: Checking, Check Digits, and Casting out Nines * 4: Quicker Quotients and Pleasing Products -- Multiply and Divide by Specific Numbers * Interlude III: Doomsday * 5: Calculations with Constraints -- Multiply and Divide by Numbers with Specific Properties * Interlude IV: Multicultural Multiplication * 6: Super Powers -- Calculate Squares, Square Roots, Cube Roots, and More * 7: Close-Enough Calculations -- Quick and Accurate Approximations * Interlude V: Approximating the Number of Space Aliens * 8: Multiplying Irrationally * The Grand Finale * Further Reading * Appendix I: Calculating Doomsday * Appendix II: The Squares from 1 to 100
* Preface * Introduction * Challenge * 1: Arithmetical Advice * 2: Speedier Sums and Subtractions * Interlude I: The Magic of 111,111 * 3: Accounting for Taste -- Adding Columns Quickly * Interlude II: Checking, Check Digits, and Casting out Nines * 4: Quicker Quotients and Pleasing Products -- Multiply and Divide by Specific Numbers * Interlude III: Doomsday * 5: Calculations with Constraints -- Multiply and Divide by Numbers with Specific Properties * Interlude IV: Multicultural Multiplication * 6: Super Powers -- Calculate Squares, Square Roots, Cube Roots, and More * 7: Close-Enough Calculations -- Quick and Accurate Approximations * Interlude V: Approximating the Number of Space Aliens * 8: Multiplying Irrationally * The Grand Finale * Further Reading * Appendix I: Calculating Doomsday * Appendix II: The Squares from 1 to 100
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