读算法导论遇到的几个问题

1、疑问：为啥java虚拟机操作数据的时候，数值从操作栈上获取而不是直接从局部变量获取（局部变量不是存储在操作栈上的么）？

Because most java Virtual Machine instructions operate on valuespopped from the operand stack rather than directly on local variables,instructions that transfer values between local variables and the operand stackare common in code compiled for the Java Virtual Machine.

 

因为：

i_store_1 : 从栈中弹出数据并存储在局部变量中

i_load_1: 将局部变量的值压入栈中

 

2、静态线程（static threading）的疑问？

Although the operating system allowsprogrammers to create and destroy threads, these operations are comparativelyslow. Thus, for most applications, threads persist for the duration of acomputation, which is why we call them “static.”

 

3、动态多线程？

动态多线程包括一个调度器，调度器进行自动计算负载均衡，因此简化程序开发。动态多线程有两个特征：嵌套并行和并行循环。

4、各种数学符号，及“主定理” ，：好好读读前面几章