一、能量衡算 二、总传热速率微分方程 三、总传热系数 四、平均温度差 五、传热面积的计算 六、传热单元数法

习题三解答 1沿下列路线计算积分z2d (1)自原点到3+i的直线段 (2)自原点沿实轴至3,再由3沿垂直向上至3+; (3)自原点沿虚轴至i,再由i沿水平方向右至3+i。 解(1){x=30sts1,故z=3t+it,0sts1.d=(3+j

文法与语言 一、文法被用来精确而无歧义地描述语言的句子的构成方式 二、文法描述语言的时候不考虑语言的含义

优化的概念 编译时刻为改进目标程序的质量而进行的各项工作。 空间效率时间效率

燕山大学：《微机原理》课程教学资源（讲义）第1章 背景知识

Main Purpose Study an algorithm: – Translating a regular expression into a DFA via NFA

南京大学：《编译原理》课程教学资源（PPT课件讲稿）第五章 语法制导的翻译

The Function of a Scanner Reading characters from the source code and form them into logical units called tokens Tokens are logical entities defined as an enumerated type – Typedef enum {IF, THEN, ELSE, PLUS, MINUS, NUM, ID,…} TokenType;

Function of a Parser Takes the sequence of tokens produced by the scanner as its input and produces the syntax tree as its output. Parser Sequence of tokens Syntax-Tree

Attributes – Any property of a programming language construct such as The data type of a variable The value of an expression The location of a variable in memory