By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. For the sake of usefulness people often need to approximate pi.
Definition and Examples of Literary Terms. The term palindrome is derived from two Greek words âpalinâ means again and âdromosâ means way or direction. It is defined as a number, a word, a sentence, a symbol or even signs that can be read forward as well as backward or in reserve order with the same effects and meanings.
Top 10 Palindromes. Palindromes are the most symmetrical words and phrases youâll ever encounter. Also, the most amusing, when you think of the nonsense and ambiguous meanings that can come from trying to achieve perfect syntactical harmony. Here are ten for those who like to read things front to back (and then back to front again).