一种生成笛卡尔网格的代码（多重网格版本）。

Fortran 90

功能：返回双精度参数的反全余弦的三角函数值 返回返回双精度参数y和x的数值由公式y/x计算的反正切三角函数值-function : to return to double-precision parameters of the whole anti-cosine value of the trigonometric function to return to double-precision parameters x and y values from the formula y/x calculating the arc tangent trigonometry value

旅行家问题 一个旅行家想驾驶汽车以最少的费yi 用从一个城市到另一个城市（假设出发时油箱是空的）。给定两个城市之间的距离为D1、汽车油箱的容量为C(以升为单位），每升汽油能行驶的距离为 D2，出发点每升汽油价格P和沿途油站数N（N可以为零），油站i离出发点距离Di,每升汽油价格Pi(i=1,2...N)。计算结果四舍五入至小数点后两位。 如果无法到达目的地，则输出“No Solution"。-issue a travel home to travel home to drive a car with the minimum of cost yi used from one city to another city (assuming starting at the fuel tank was empty). Given the two cities for the distance between D1, car fuel tank capacity of the C (in liters) per liter petrol traveling distance to the D2, the starting point liter gasoline prices P and several petrol stations along the N (N can be zero), PFS i distance from the starting point Di per liter Steam oil prices Pi (i = 1,2 ... N). Calculation results rounded to two decimal places. If unable to reach their destination, the export of "No Solution."

给出集合类的定义，可模拟实现集合的交集，并集运算，并可以插入，删除元素-is set class definition can be simulated to achieve the intersection and set computing, and can be inserted, deleted elements

曲线拟合，实现啦格朗日曲线画法，可以实时产生随机数来画-Curve fitting, curve realize you granges painting, you can generate random numbers in real-time to painting

复数类，封装了复数的所有运算-plural categories, a complex package of all Operational

路径查找代码[vc版本代码]-path search code [vc version code]

多项式的编程另一种算法-polynomial another programming algorithm

uu encode and decode

包括基本概念，数学规划的解析法，基本构件优化设计，线性规划，桁架优化设计，连续梁和钢架的优化设计，非线性规划在结构优化设计中的应用，动态规划，几何规划，结构动力优化-Including basic concepts, the analytic method of mathematical programming, the basic components to optimize the design, linear programming, optimization of truss design, steel beams and continuous optimization of the design, non-linear programming in structural optimization and design, dynamic programming, geometric programming, structural dynamics Optimization