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fft
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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Fortran-Algorithms
Fortran常用算法程序集－第二版.pdf，很全的算法程序集，对提高Fortran编程能力大有帮助。(Fortran common algorithm assembly- Second Edition. Pdf, is the whole assembly algorithms, to improve the Fortran programming skills go a long way.)
- 2011-04-25 17:09:57下载
- 积分：1
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gtn-st-lm
Umat for GTN damage material model in Abaqus by UMAT - STATIC in Levenberg-Marquardt (LM) solution routines from Slatec library
- 2021-03-24 20:39:14下载
- 积分：1
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Kriging.Interaption
地统计学中的克里格插值法，Matlab编写，内有详细的说明。(failed to translate)
- 2013-01-14 13:33:35下载
- 积分：1
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leastSquaresmethod
说明： 最小二乘一次完成算法，C语言编写，源码，调试通过。(A complete least-squares algorithm, C language, source code, debugging through.)
- 2008-10-18 13:57:54下载
- 积分：1
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1
本书用c语言编写了科研和工程中最常用的166个算法,这些算法包括复数 运算、... 4.3.1 【算法23】求一般复矩阵的逆 4.3.2 【算法24】求对称正定矩阵的(good study)
- 2013-11-06 21:28:17下载
- 积分：1
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LM算法
该代码完成了LM算法，并附有详细的代码说明。(The code completion LM algorithm, along with a detailed code instructions.)
- 2016-02-20 11:52:00下载
- 积分：1
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bycgste
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(Conjugate gradient method (Conjugate Gradient) is between the steepest descent method and Newton' s method between a method that takes only a first derivative information, but to overcome the slow convergence of the steepest descent method shortcomings, but also avoid the need to store Newton and computing the inverse Hesse matrix and disadvantages, conjugate gradient method is not only to solve large linear equations of the most useful methods, large-scale nonlinear optimization solution is the most efficient algorithms)
- 2013-09-13 16:33:21下载
- 积分：1
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mg
说明： 迭代算法中的多重网格计算程序Visual C++原代码(iterative algorithm of multiple grid computing procedures Visual C source code)
- 2007-03-31 10:11:48下载
- 积分：1
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3107002005_2nd_A_LDL
说明： LDL分解。作为矩阵方程数值解法最基础的矩阵分解算法，LDL算法可以高效分解对称矩阵。(LDL decomposition. Numerical Solution of matrix equation as the most basic matrix factorization algorithm, LDL decomposition algorithm can be efficient symmetric matrix.)
- 2008-10-27 10:47:26下载
- 积分：1
