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1
说明： fluent数值计算中在指定单元坐标加入源项的udf(Add source term to cell coordinates in numerical analysis)
- 2018-07-28 10:08:29下载
- 积分：1
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DosBigMath
实现1到1000位的大数运算（包括加减乘除和浮点数运算），运行环境是vs2005(1-1000, large number operations (addition, subtraction and floating-point), the operating environment is vs2005)
- 2012-05-26 21:15:29下载
- 积分：1
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cdq.rar
基于时间序列法的超短期电力负荷预测 利用时间序列法进行数学建模(Mathematical modeling based on very short-term power load time series forecasting using time series method)
- 2021-04-29 11:08:43下载
- 积分：1
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ren_GPC-PID
广义预测控制算法仿真，通过最小二乘法对系统进行在线辨识，并与PID对比，能运行的(Generalized predictive control algorithm simulation, through the of least squares method for on-line identification system, can run)
- 2012-05-02 17:57:18下载
- 积分：1
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step response
Step response of vehicle
- 2018-04-20 19:56:54下载
- 积分：1
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共轭梯度法
说明： 共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(Conjugate gradient method Gradient) is a method between the steepest descent method and Newton's method. It only uses the first derivative information, but overcomes the disadvantage of slow convergence of steepest descent method, and avoids the disadvantage of storing and calculating Hesse matrix and solving inverse of Newton's method. Conjugate gradient method is not only one of the most useful methods to solve large-scale linear equations, but also the most effective method to solve large-scale nonlinear optimization One of the algorithms of. Among all kinds of optimization algorithms, conjugate gradient method is very important. It has the advantages of small storage, step convergence, high stability and no external parameters.)
- 2020-06-27 15:46:08下载
- 积分：1
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SHENGXUE_BEM
求解声学问题的边界元程序，给声学研究的人员很大启发(Solving the problem of acoustic boundary element program, to inspire great acoustic research staff)
- 2011-07-27 06:37:38下载
- 积分：1
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文件1
说明： 文件中有大量 数据样本，根据样本进行数据处理，求均值，插值，最大值，最小值等(There are a large number of data samples in the file. According to the samples, data processing is carried out to find the mean value, interpolation, maximum value, minimum value, etc)
- 2020-01-06 21:49:43下载
- 积分：1
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实现UTM平面坐标系到经纬度的双向转换 CoordinateConversion
实现UTM平面坐标系到经纬度的双向转换，是地理方面应用的好助手(UTM plane coordinate system to achieve two-way conversion of latitude and longitude, is a good helper geographic applications)
- 2014-10-23 09:43:25下载
- 积分：1
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zheng
正入射的自由曲面透镜设计，计算获得透镜的二维坐标(The free-form surface lens is incident on the design, the two-dimensional coordinates of the lens calculated)
- 2021-04-13 18:58:56下载
- 积分：1
