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mk
说明： 常用于分析降水、径流、气温等要素时间序列的趋势变化，其优点在于样本不需要遵循某一特定的分布，而且很少受到异常值的的干扰，计算简便。(It is often used to analyze the trend change of time series of factors such as precipitation, runoff and air temperature. Its advantage is that the sample does not need to follow a specific distribution, and is rarely disturbed by outliers, so it is easy to calculate.)
- 2018-09-07 21:26:05下载
- 积分：1
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Gravity-anomaly
计算重力异常,只需要输入最大重力场模型的最大阶数以及重力场模型文件名在程序里设置经纬度范围和间隔即可得到重力异常(Gravity anomaly)
- 2013-06-13 14:46:49下载
- 积分：1
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MMA
说明： 拓扑优化MMA算法从空间的一个初始设计点出发，沿着某个搜索方向以适当步长的迭代格式 ，实现对设计变量的修改，以获得的值。(Starting from an initial design point in space, the topology optimization MMA algorithm modifies the design variables in an appropriate iterative format along a certain search direction to obtain the optimal value)
- 2021-02-04 12:14:39下载
- 积分：1
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frft
分数阶fourier变换程序，基于插值和抽取操作和卷积运算的快速算法。(Fractional fourier transform procedures, based on interpolation and extraction operation and fast algorithm for convolution operation.)
- 2008-07-03 16:26:15下载
- 积分：1
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Johnson-Cook模型
程序是庄茁大神经典的Johnson-Cook模型隐式算法
另外包括一个 ABAQUS-Standard用户材料子程序实例的文档说明(The program is a classic Johnson-Cook model implicit algorithm
and it includes documentation of an ABAQUS-Standard user material subroutine example)
- 2020-07-04 20:40:01下载
- 积分：1
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SVD
最小二乘估值的SVD分解计算方法，本程序可将最小二乘估值问题转化为超定方程组的问题处理，且可用奇异值分解的方法计算最小二乘问题。(Least Squares Estimates of the SVD decomposition method, the valuation process can be transformed into squares overdetermined equations deal with the problem, and can be calculated singular value decomposition least squares problem.)
- 2020-07-04 15:20:02下载
- 积分：1
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速度规划
在轨迹给定长度范围内，各个waypoint给定确定的速度范围约束，规划处平滑的速度变化曲线(Within the given length range of the trajectory, each waypoint is given a determined velocity range constraint and a smooth velocity variation curve at the planning point)
- 2017-07-09 11:51:42下载
- 积分：1
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vumat
abaqus fortran 纤维拉伸 子程序(abaqus fortran fiber stress subumat)
- 2014-01-19 13:52:59下载
- 积分：1
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最速下降法与牛顿法
说明： 此代码包括牛顿法和梯度下降法的实现过程，最优化以及算法中常见的问题解决方式(This code includes the process of Newton method and gradient descent method)
- 2020-01-07 09:42:51下载
- 积分：1
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LyapunovspectrumforLorenzattractor
附件中是我用Fortran写的lorenz混沌吸引子的lyapunov指数谱产生程序。包括三部分内容：如何产生lorenz吸引子，详细注释，如何计算lyapunov指数谱。
需要的话也可以单独提取子程序中的四阶龙格库塔算法。
希望有所用。(Annex is written in Fortran I used the Lorenz chaotic attractor of lyapunov index spectrum generation process. Includes three parts: how to generate Lorenz attractor, detailed notes, how to calculate the spectrum lyapunov index. If necessary, extraction can also be a separate subroutine in the fourth-order Runge-Kutta algorithm. Would like to see used.)
- 2008-12-30 09:19:46下载
- 积分：1
