Besides a good calculator, all mathematicians should own An Introduction to Mathematics. This is an important resource for answering basic arithmetic questions that may arise when performing complex calculations in your academic studies or on the job. Whitehead starts you off with “The Abstract Nature of Mathematics” to lay down the foundation for the characteristics that compound math, as well as discusses symbolism and applied techniques. Then, it’s on to the different types of mathematical situations you may face. He explains imaginary numbers in length and educates pupils on the subjects of coordinate geometry, conic functions, trigonometry, geometry, and differential calculus.