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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
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dbr1
采用传输矩阵法计算，计算多层周期性介质薄膜在不同入射波长下的反射率。(calculate the reflectivity of multilayer periodic structure with TMM method)
- 2020-08-23 14:48:20下载
- 积分：1
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数值计算方法 二版-ppt(吕同富)
说明： 数值分析第二版吕富同ppt
数值分析学习的参考资料(Numerical Analysis
Reference materials for numerical analysis learning)
- 2020-05-02 11:25:22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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appendix3-vumat
说明： VUMAT for Kinematic Hardening Plasticity
- 2020-07-08 19:22:13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
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kfilter
说明： 用于石油地震资料数字处理，包括 地震偏移（二维或三维）、滤波程序、重采样、具有很广的应用前景，还可以移植到其他的工程领域。(oil for digital processing seismic data, including seismic migration (2D or 3D), filtering procedures, re-sampling, have a very broad application prospects, but also can be transferred to other engineering fields.)
- 2006-03-06 11:20:40下载
- 积分：1
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fortran_MD
Fortran编的关于分子动力学模拟的程序(Fortran programs compiled on the molecular dynamics simulations)
- 2014-02-26 22:16:23下载
- 积分：1
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wn037
用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,实现了图像的加水印，去噪，加噪声等功能，包括最小二乘法、SVM、神经网络、1_k近邻法。( Monte Carlo simulation method of calculating the American option price and basic description, Realize image watermarking, de-noising, plus noise and other functions, Including the least squares method, the SVM, neural networks, 1 _k neighbor method.)
- 2017-04-05 19:56:22下载
- 积分：1
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PSO-lssvm
用于优化最小二乘支持向量机的Matlab程序代码，可直接实用。(Used to optimize the least squares support vector machine in Matlab code can be directly useful.)
- 2012-06-10 11:02:30下载
- 积分：1
