Shopping in Mars is quite a different experience. The Mars people pay by chained diamonds. Each diamond has a value (in Mars dollars M). When making the payment...

With highways available, driving a car from Hangzhou to any other city is easy. But since the tank capacity of a car is limited, we have to find gas stations on...

To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords since it i...

This time you are asked to tell the difference between the lowest grade of all the male students and the highest grade of all the female students.

题目Given a pair of positive integers, for example, 6 and 110, can this equation 6 = 110 be true? The

A+B for Input-Output Practice(using C++)1.Problem DescriptionYour task is to Calculate a + b. Too

Wiki上介绍的瀑布图分为两种，一类是2D形式，另一类是3D形式。我们简单介绍一下2D形式的瀑布图。该类瀑布图用于描述一系列中间正值或负值如何影响初始值。通常，初始值和最终值（端点）由整列表示，而中间值则显示为基于上一列的...

M变换：https://blog.csdn.net/Enterprise_/article/details/106880754 VP变换：https://blog.csdn.net/Enterprise_/article/details/106934622

一个样本信息就有二十几个个字段。如果一个一个录入，可能不是很好的体验。可以从以下几点缓解这个问题：

Sample Entropy是Approximate Entropy(近似熵)的改进，用于评价波形前后部分之间的混乱程度， 熵越大，乱七八糟的波动越多，越不适合预测；熵越小，乱七八糟的波动越小，预测能力越强。...