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Crank-Nicholson
关于一的微分方程数值解,一维波动方程初边值问题Crank-Nicholson格式,及追赶法(On one of the numerical solution of differential equations, one-dimensional wave equation Crank-Nicholson format, and to catch up with the Law)
- 2008-05-08 23:46:39下载
- 积分:1
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最速下降法求解方程组
说明: 最速下降法就是梯度下降法,可以用于求解最小二乘问题(线性和非线性都可以)。可以说是求解机器算法的最古老、最经典的模型,另一种常用的方法是最小二乘法。(The steepest descent method is the gradient descent method, which can be used to solve the least squares problem (both linear and non-linear). It can be said that it is the oldest and most classical model for solving machine algorithm. Another commonly used method is the least square method.)
- 2019-05-13 21:13:18下载
- 积分:1
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P-svWaveFieldSimulationConversion
二层地质模型波场模拟,用有限差分进行波场的模拟,充分利用多波多分量地震记录,以及各向异性方面的独特信息,可有效地减少
纵波勘探的多解性,定量地描述裂缝储层,改善某些纵波资料成像不好地区的构造
成像。这样可获得比纵波分辨率高的多波剖面,从而有利于研究小幅度构造、断层、
裂缝裂隙等复杂地质现象,对油气勘探与开发具有现实意义和实用价值(Two-layer geological model wave field simulation, using finite difference wave field simulation to make full use of multi-wave multi-component seismic records, and the anisotropy of the unique information can be effective in reducing the P-wave exploration, multi-solution and quantitatively describe the crack reservoir to improve the poor image of some P-wave data area structure imaging. This availability of higher resolution than the longitudinal wave of multi-wave profile, thus contributing to the small amplitude structures, faults, cracks, fissures and other complex geological phenomena, for oil and gas exploration and development of practical significance and practical value)
- 2009-11-06 15:56:59下载
- 积分:1
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stochastic-computation
TGM.m \传统的Galerkin方法
MD.m \时滞惯性流形方法
brownian.m \演示布朗运动
randomwalk.m \ 演示随机游走
tumor.m \ 演示tumor演化(TGM.m traditional Galerkin method MD.m Delays inertial manifold method brownian.m demo Brownian motion randomwalk.m demo random walk tumor.m demo tumor evolution)
- 2013-08-28 18:00:23下载
- 积分:1
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areaofcircle
一圆形游泳池如图所示,现在需在其周围建一圆形过道,并在其四周围上栅栏。
栅栏价格为35元/米,过道造价为20元/平方米。
过道宽度为3米,
游泳池半径由键盘输入。
要求编程计算并输出过道和栅栏的造价。(A circular pool as shown in figure, now in its built around to a circular corridor, and in its 4 around on the fence.
The fence for 35 yuan/m price, corridor cost for 20 yuan/square metre.
Aisle width is 3 meters,
The radius of the swimming pool by keyboard input.
Demand and output programming calculation of corridor and the cost of the fence.
)
- 2012-04-06 11:29:01下载
- 积分:1
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matlab
己知一些离散的点,使用matlab利用最小二乘法拟合(Had a number of discrete points, with linear least squares fitting)
- 2013-10-14 15:05:47下载
- 积分:1
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WashTransformation
计算给定序列的沃什(Walsh)变换序列。(Calculation of a given sequence of Vas (Walsh) transform sequence.)
- 2008-05-19 15:38:24下载
- 积分:1
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wtls
加权总体最小二乘matlab工具箱,包含各种总体最小二乘算法的源代码(weighted total least squares toolbox)
- 2020-09-11 16:08:01下载
- 积分:1
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tree
设T 是一棵带权树,树的每一条边带一个正权。又设S 是T 的顶点集,T/S 是从树T 中
将S中顶点删去后得到的森林。如果T/S中所有树的从根到叶的路长都不超过d ,则称T/S
是一个d 森林。(this is a project )
- 2021-05-09 05:08:35下载
- 积分:1
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PANair
面元法程序,用于计算飞行器气动力、气动力矩系数。(panel code for aero calculation.)
- 2020-11-21 11:39:36下载
- 积分:1