Taylor Trade Publishing
Pages: 182
Trim: 6 x 9
978-0-88415-087-9 • Paperback • September 1993 • $17.95 • (£13.99)
978-1-58979-673-7 • eBook • September 1993 • $16.99 • (£12.99)
Fascinating...no author has gone as far as Doerfler in covering methods of mental calculation beyond simple arithmetic. Even if you have no interest in competing with computers you'll learn a great deal about number theory and the art of efficient computer programming.
— Martin Gardner, author of Mathematical Carnival