http://www.sfu.ca/~ssurjano/optimization.html The functions listed below are some of the common functions and datasets used for testing optimization algorithms. They are grouped according to similarities in their significant physical properties and s
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use ContourPlot to draw implicit function graphics 使用ContourPlot 画隐函数图像 for example $x^{3}+y^{3}-3xy=0$ use ContourPlot to draw integral curve 使用ContourPlot 画积分曲线 for example $y{}'=xy-e^{-x^{2}}y^{3}$ solve it get $y=\frac{e^{x^{2}/2}}{\sqrt{2x+c}},
相信我们在面试Java的时候总会有一些公司要做笔试题目的,而Java类的加载和对象创建流程的知识点也是常见的题目之一.接下来通过实例详细的分析一下. 实例问题 实例代码 Parent类 package mytest.javaBase; public class Parent { int a = 10; static int b = 11; // 静态代码块 static { System.out.println("Parent静态代码块:b=" + b); b++; } // 代码块