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矩阵相关运算，例如求逆转置运算等 等功能(Matrix-related operations, such as seeking reversal of home computing and so on)

说明：  这个小工具可以实现浮点数（4个字节）和实数之间的转换。(This gadget can achieve floating-point numbers (4 bytes) and the conversion between real numbers.)

VB版高级功能计算器，除了具有数学运算外，还包括三角函数、反三角函数、双曲三角函数、绝对值等运算，还可以进行一些比较复杂的表达式计算。它还有函数绘图、数据统计和自定义常数等功能。(VB version of the advanced features calculators, arithmetic addition, but also includes trigonometric functions,反三角函数, hyperbolic trigonometric functions, such as computing the absolute value can also be used for the expression of some of the more complex calculation. It also has function mapping, data and custom features such as constant.)

万年历（0-9999）（每行打印2个月）。(Calendar (0 to 9999) (2 months each line of print).)

我们在使用金山词霸时发现,在金山词霸已经运行了的情况下(When using powerword, we found that in the case of powerword has been running for)

VC++编写的IP侦查小程序 很实用(VC++ IP detection of small programs written in a very practical)

说明：  一个C#开发的线性规划 单纯形算法，能够求解中小规模的线性规划问题，欢迎大家下载，自己写的哦！！(A C# development of linear programming simplex algorithm to solve the small and medium-scale linear programming problem, welcome to download their own writing Oh! !)

to study for student

一个小ANTLR程序，实现了计算器实现的语法，是学习编译原理的很好的例子(A small ANTLR procedures, implementation of the implementation of the calculator grammar, studying compilers are good example of the principle of)

USACO第10题，Marry乳业从一些奶农手中采购牛奶，并且每一位奶农为乳制品加工企业提供的价格是不同的。此外，就像每头奶牛每天只能挤出固定数量的奶，每位奶农每天能提供的牛奶数量是一定的。每天Marry乳业可以从奶农手中采购到小于或者等于奶农最大产量的整数数量的牛奶。 给出Marry乳业每天对牛奶的需求量，还有每位奶农提供的牛奶单价和产量。计算采购足够数量的牛奶所需的最小花费。 (Give the requirement of milk and the amount that they offer.)