
Arguably the three most important numbers in mathematics are - pi(3.14…), phi(1.618…) and e(2.718…). Each of these numbers has an independent importance in the scheme of things, from describing the exotic properties of energy, to the very fabric of matter, and everything else in between!
What they all have in common, apart from their celebrity, is the fact that each is irrational. That is they go on forever after the decimal point. None is exact and their value can only be approximated to. This is unlike normal rational numbers like 3.1, 1.2398, 23.675 etc. These numbers have a definite ending. What is more, any rational number can be described by a fraction of two numbers. For example take the number 0.875. This is 7 divided by 8. Here is another one: 5.295 is 1059 divided by 200. For all this, irrational numbers are not rare. Our little trio of constants is in the company of the square root of 2, 3, 99 and many cube and quadratic roots ad infinitum.
If these intrepid little numbers were animals they would be as different to each other as a mouse, an insect and a T-rex. So let us take a closer look at each of these lovable, enigmatic critters; their history, their tricks and their powers.
Read the whole amazing article at: http://ezinearticles.com/?Discovering-Mathematical-Constants—Get-to-Know-These-Enigmatic-Critters-and-Make-Them-Your-Friends&id=2780815
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