Homework for Grown-Ups: Everything You Learned at School...and Pr by E. Foley & B. Coates

Author:E. Foley & B. Coates [Foley, E. & Coates, B.]
Language: eng
Format: epub
Tags: reference, General
ISBN: 9781554687640
Google: F4F2SgAACAAJ
Publisher: HarperCollins
Published: 2010-10-26T23:44:36.618916+00:00

An easy way to remember pi to six decimal places is: “How I wish I could calculate pi.” The number of letters in each word gives you pi.

AWE-INSPIRING ALGEBRA

Algebra is the branch of mathematics that uses letters and other symbols to represent numbers and quantities in formulae and equations. This may seem like making life more difficult than necessary – why use x and y instead of 2 and 3? – but algebra is essential when you don’t know all the values of a calculation or if those values are prone to fluctuation. Equations are everywhere, from the fields of computing, physics and chemistry, to the principles of architecture and engineering and even to methods of philosophical enquiry. As the famous equation maestro Albert Einstein once said: “If a is a success in life, then a = x + y + z. Work is x; y is play; and z is keeping your mouth shut.’

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