计算机程序设计艺术（卷1：基本算法）（英文版 第3版）

 

chapter one is about basic concepts, what is algorithms by exhibiting Eucllid's algotihm: Algorithm E--->find greatest common divisor.

description in words and symbols of some action to be performed or some decision bo be made.

Giving 5 important features:finiteness,definiteness,input,output,effectiveness