Praised by Martin Gardner as "a really marvelous introduction to basic mathematics, through the calculus, by a top mathematician who writes clearly, simply, and beautifully," this classic is accessible to readers with virtually no background in the subject. Numerous helpful examples clarify the treatment of algebra, fractions, geometry, irrational numbers, logarithms, infinite series, complex numbers, quadratic equations, trigonometry, functions, and integral and differential calculus.