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ayy_hankel
计算汉克尔函数，包括复数变量和任意阶数。对初学者很有帮助。(Calculate Hankel functions, including complex variable and arbitrary order. Useful for beginners.)
- 2012-10-29 10:40:21下载
- 积分：1
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matlab
Matlab潮流计算程序可计算任意N节点，带算例，说明十分详细(Matlab flow calculation program can calculate arbitrary N nodes, with examples, very detailed)
- 2021-04-07 19:39:01下载
- 积分：1
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yangkanglunwen
对流扩散方程一维的有限差分法，有限元法，特征有限差分法，特征有限元法代码(Convection diffusion equation of one dimensional finite difference method, finite element method, characteristic finite difference method, characteristic finite element method (fem) code)
- 2015-10-09 16:25:00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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sort
快速排序法和堆排序法Fortran90程序，其中快速排序法使用到了递归过程，因此对于堆栈要求较高(both Quicksort and Heapsort program are used for sort array. Note that a recursion process is used in Quicksort program, Thus it need require a relative high stack size.)
- 2020-06-29 20:00:01下载
- 积分：1
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非线性方程组求解
常用的matlab代码，非线性方程组求解，基本可以满足大学和研究生常用代码(Common Mathematical Codes)
- 2019-04-22 23:23:03下载
- 积分：1
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Leastsquarespolynomialfitting
这是最小二乘法多项式拟合的算法 很有参考价值的程序,(This is the least squares polynomial fitting algorithm is very useful procedure,)
- 2008-08-11 12:09:48下载
- 积分：1
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DifferentialEquation
利用龙格库塔法（等步长，变步长）计算椭圆方程，双曲线方程，抛物线方程等。对各类微分方程进行数值计算。(The use of Runge-Kutta method (such as step, variable step size) calculated elliptic equations, hyperbolic equations, such as parabolic equation. Various types of differential equations for numerical calculation.)
- 2009-01-27 17:38:24下载
- 积分：1
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gcc-objc-3.4.2-20040916-1.tar
The Polarized light Monte Carlo programs described here keep track of the status of polarization of light traveling through a scattering media.(polarized monte carlo)
- 2021-04-11 09:58:58下载
- 积分：1
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a
说明： 矩阵的转置，相乘及界面的面换稀疏矩阵的三元组相加(Sum of the transpose of the matrix, multiplying, and interfacial surface replacing the sparse matrix triples)
- 2012-09-04 15:33:18下载
- 积分：1
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