一個計算機系教授的上課講義 主要是教導學生使用C語言編寫程序

				CS 1355
				Introduction to Programming in C
				Thursday 2006.9.28 (Week 3)
				Lecture notes (at http://r638-2.cs.nthu.edu.tw/C/notes/06.txt)
				
				Chapter 3: Structured Program Development in C (cont'd)
				
				Concepts:
				- floating point and printf formatting
				- typecasting operator
				
				
				Floating point printf
				- printf means print-formatted
				  %d   : decimal (