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simplecalculator
该程序实现的是计算器功能,包含简单的加减乘除,以及取余、求倒等功能计算。(The program is a calculator function, contain simple addition and subtraction, multiplication and division, and modulo, seeking poured functions calculation.)
- 2013-04-12 12:17:36下载
- 积分:1
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Computational-Mechanics01
计算力学基础,中国科技大学精品教材,王秀喜,吴恒安编著(The basis of Computational Mechanics, University of Science and Technology of China, boutique textbook series)
- 2012-11-08 10:17:08下载
- 积分:1
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homotopy
code for homotopy in compressed sensing
- 2009-03-30 01:00:23下载
- 积分:1
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Mathematical-modeling
主要是基于matlab编程的机器学习的各种算法的实现,对补补基础很好(Matlab programming machine learning algorithm, Bubu basis of good)
- 2013-04-10 15:41:16下载
- 积分:1
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PCA算法程序 pca
PCA算法程序设计步骤:
1、去均值
2、计算协方差矩阵及其特征值和特征向量
3、计算协方差矩阵的特征值大于阈值的个数
4、降序排列特征值
5、去掉较小的特征值
6、去掉较大的特征值(一般没有这一步)
7、合并选择的特征值
8、选择相应的特征值和特征向量
9、计算白化矩阵
10、提取主分量
(PCA algorithm programming steps: 1 to mean 2, calculation of covariance matrix and its eigenvalues and eigenvectors 3, the calculation of covariance matrix eigenvalues greater than the threshold number of 4, in descending order of eigenvalue 5, remove the smaller eigenvalue 6, remove the larger eigenvalue (usually not this step) 7, the combined choice of eigenvalues 8, select the appropriate eigenvalues and eigenvectors 9, computing whitening matrix 10, principal component extraction)
- 2021-03-09 13:09:27下载
- 积分:1
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插值函数
说明: 基于matlab实现的拉格朗日插值函数,牛顿插值函数代码。(Based on MATLAB Lagrange interpolation function, Newton interpolation function code)
- 2020-12-03 14:09:35下载
- 积分:1
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k_means
功能完善的、代码简单清晰、注释良好的k均值聚类算法(The function is perfect, code simple clear, annotation good k-means clustering algorithm)
- 2012-04-19 12:59:51下载
- 积分:1
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high-resolution-one-dimension
高分辨率要求系统具有大的带宽,瞬时带宽的增加必将提高系统对硬件的要求,本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽,使成像具有高分辨率,采用加窗和补零方法提高信噪比,但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率,使距离像细化,并用公式说明了补零只能提高距离取样分辨率,并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感,使目标能量分散到邻近的距离单元造成距离分辨率下降,如果不事先进行速度补偿,直接对回波信号进行逆傅立叶变换,将使所成一维距离像发生频谱展宽,并伴有距离像发生平移。本文证明了当目标有径向速度时仍采用对回波信号直接进行逆傅立叶变换的方法将使一维距离像发生频谱展宽并伴有距离像发生频移,从而严重影响了一维距离像的质量。(high-resolution requirements of the system with large bandwidth, the increased instantaneous bandwidth will improve the system of hardware, In this paper, a flexible and convenient step frequency signals. Pulse frequency step-pulse waveform through the carrier frequency step to achieve great changes in the effective bandwidth. make imaging with high resolution, increasing the window and fill methods to improve signal-to-noise ratio is, However, the signal on the target radial velocity is very sensitive. Using zero-distance sampling method to improve resolution, so that distance as refinement, and formulates a zero-distance sampling can improve resolution, does not alter the frequency of the signal from stepping resolution capabilities. The signal waveform on the target radial velocity sens)
- 2007-04-07 22:15:33下载
- 积分:1
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mech_stewartplatform
用于计算stewart 六自由度运动平台的正解问题(this program is designed for stewart platform。)
- 2012-08-02 15:02:47下载
- 积分:1
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WLS
用最小二乘法进行电力系统状态估计,包含IEEE30节点的电力系统图(Using least squares power system state estimation, including IEEE30 bus power system diagram)
- 2021-03-01 16:29:35下载
- 积分:1