-
fft
说明: 用DFT 函数计算电压u, 电流i的基波(f1=50 Hz)的有效值和相位;
用FFT函数分别计算电压u和电流i 所包含的直流,基波和谐波的有效值和初相角;
可计算基波(f1=50 Hz)和各次谐波的功率p和功率因数con?.(The effective value and phase of fundamental wave (f1 = 50 Hz) of voltage U and current I are calculated by DFT function.
The effective values and initial phase angles of DC, fundamental and harmonic waves contained in voltage U and current I are calculated by FFT function, respectively.
The power P and power factor con of fundamental wave (f1 = 50 Hz) and harmonics can be calculated.)
- 2019-03-28 15:48:19下载
- 积分:1
-
Variogram_regress
matlab环境下,克里金插值中用回归方法和线性方法拟合出的球状模型的系数。(Kriging the spherical model coefficients using regression fitting in matlab.)
- 2012-11-28 13:00:31下载
- 积分:1
-
GAUSS-JORDAN
gauss jordan method. not my own program but i just want to share it.
- 2012-09-30 09:32:51下载
- 积分:1
-
CHEBYSHEV1_RULE
C + +程序,根据用户的输入可以产生特定的Gauss -1型切比雪夫正交规则,(C++ program which can generate a specific Gauss-Chebyshev type 1 quadrature rule, based on user input)
- 2011-05-23 22:05:40下载
- 积分:1
-
fortran-files
文件1.f90:生成翼型naca0012的椭圆网格,并计算流场,给出壁面压力分布
文件2.f90:maccormack方法解一维burger s方程
文件3.f90:解一维laval管流动,其进出口均为亚音速,喉道后部有激波(File 1.f90: generate the airfoil naca0012 elliptical rotary cell, and calculate the flow field, given the wall pressure distribution file 2.f90: maccormack method to solve the burger' s equation, one-dimensional file 3.f90: solution of one-dimensional laval tube flow, its progress exports are subsonic, the back of the throat have shock)
- 2012-06-10 18:21:15下载
- 积分:1
-
Stack
This is a Stack Class with Funtions Push,Pop,
check Stack is Full or Empty
Application:
Change a number from Decimal to Binary
- 2009-03-23 07:47:26下载
- 积分:1
-
2
说明: 9跨每跨35米桥梁响应的车桥耦合程序,使用Fortran编写(9 of 35 meters span bridge across every bridge coupled response procedures, the use of Fortran written)
- 2011-05-19 23:25:12下载
- 积分:1
-
2011B题
用来作为数学建的参考资料学习,希望对爱好则用所帮助(math model study study .Used as a reference material for Mathematical Studies)
- 2017-06-25 20:39:30下载
- 积分:1
-
RSDA
工具箱 (粗糙集数据分析工具箱)
matla 中使用
(Kit (Rough Set Data Analysis Toolbox))
- 2009-05-22 22:01:02下载
- 积分:1
-
Matlabcodes-RobustPCA
Matlab codes for Robust PCA multivariate control chart(Robust PCA multivariate control chart mainly consists two steps:
Step1
Calculates the robust mean and the robust
covariance of original dataset using the
minimum covariance determinant (MCD).
In MCD technique, finding a subset
containing half of the data such that its
covariance matrix has the lowest determinant, then using this subset to
calculate the robust mean and the robust
covariance matrix (Hubert, Rousseeuw, &
Branden, 2005)
Step2
Standardize data using robust mean and
robust standard deviation from Step1.
Apply PCA analysis, calculate the principalcomponent score matrix Y=ZA, where Z is the robust standardized data matrix, and
A is p*p matrix of eigenvectors (also called principalcomponents))
- 2009-11-11 08:07:04下载
- 积分:1