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数值求导
- VB.6的环境下一阶、二阶、三阶和四阶导数的数值算法
求导数c++
- 求导数c++程序,~可以实现
多元函数偏导数的求法
- 多元函数的极值，多元函数偏导数的求法。多元函数自由极值的求法，多元函数条件极值的求法.学习掌握MATLAB软件有关的命令。 ,Extremal multi-function, multi-function partial derivative method. Extremum of the free multi-function method, multi-function conditions for extremum method. Learning to master the order
FivePoint.rar
- 五点光滑法。给出五个相邻的点，得到一条光滑的曲线。是对“四值型点插值法”中当前点导数的解算方法的的一种改善。,Five-point smoothing method. Five adjacent points is given by a smooth curve.
scyt
- 三次样条插值函数，可以用于计算插值，一阶导数，二阶导数-Cubic spline interpolation function can be used to calculate the interpolation, first derivative, second derivative
log
- 应用log算法进行图像的边缘检测，log算法是一种基于灰度值的二阶导数来进行边缘检测的，通过检测零点来进行边缘检测-Application log algorithm for image edge detection, log-based algorithm is a gray value of the second derivative for edge detection, by detecting zero for edge detection
2jdsqvf
- 二阶导数求取法,分别有三点法,四点法和五点法.-To strike a second derivative method, three-point method, respectively, 4:00 and 5:00 Act.
xiaobobianhua
- 利用小波变换检测突变点实验的实例，程序最后生成3个图像演示了该算法，分别为原数字信号、高斯函数作为基函数、高斯函数的一阶导数作为基函数的小波变换。-Mutation detection using wavelet transform examples of experimental points, the program generates the final three images to demonstrate the algorithm, namely, the original digi
GUISUSAN
- 边缘是图像最基本的特征，是图像分割的第一步。经典的边缘检测方法如：Roberts，Sobel，Prewitt，Kirsch，Laplace等方法，基本都是对原始图像中象素的小邻域构造边缘检测算子，进行一阶微分或二阶微分运算，求得梯度最大值或二阶导数的过零点，最后选取适当的阀值提取边界。由于这些算法涉及梯度的运算，因此均存在对噪声敏感、计算量大等缺点。在实践中，发现SUSAN算法只基于对周边象素的灰度比较，完全不涉及梯度的运算，因此其抗噪声能力很强，运算量也比较小。并将SUSAN算法用于多类图像的
masplinehh
- 用途：三阶样条插值（一阶导数边界条件） 格式：m=maspline(x,y,dy0,dyn,xx), x为节点向量，y为数据， dy0,dyn为左右两端点的一阶导数如果xx缺省，则输出各节点的 的一阶导数值，，m为xx的三阶样条插值-Uses: third-order spline interpolation (first order derivative boundary condition) format: m = maspline (x, y, dy0, dyn, xx
NumericalAnalysis
- 数值分析的m文件，包括一阶 二阶导数的三点 五点公式，中点公式等-Numerical Analysis of m documents, including a second order derivative of the 3 5 point formula, midpoint formula, etc.
marr_laplacian
- 基于二阶导数的图像边缘检测方法，包括marr算法和laplacian算法-Second derivative-based edge detection methods, including marr algorithms and laplacian algorithm
1_order_FDM
- 一阶导数的常用差分逼近 求解df的差分逼近 flag标记使用的差分算法 算法来自周超红的《一阶导数的差分逼近汇总》 可按照里边的算法构造更高阶的差分逼近-First derivative of the common difference approximation approach for solving differential df flag tag algorithm using the difference method from the week of super
程序
- 中心差分求解近似导数其中用到的有追赶法求解对三角矩阵(Central differential solution, approximate derivative)
suanfa
- 最优化方法\Cholesky分解.cpp 最优化方法\二阶导数计算.cpp 最优化方法\信赖域牛顿法.cpp 最优化方法\共轭梯度法.cpp 最优化方法\强迫正定Cholesky分解.cpp 最优化方法\直接法一维收索.cpp 最优化方法\解析法一维收索.cpp(\Cholesky decomposition of optimization methods.Cpp Optimization method [two order derivative calculation
Untitled10
- 先定义自变量，然后定义导数即有限差分之比，完成正弦函数的求导(First define the independent variable, then define the derivative, that is, the ratio of the finite difference, to complete the derivation of the sine function)
导数
- 利用C#语言进行函数求导，涉及三次样条函数(Derivation of function using C# language)
贝塞尔函数根分布及其导数
- 求第一类贝塞尔函数的根分布及其它的导数图形(The root distribution and its derivative of Bessel's function)
fluent的udf中求解二阶导数的方法
- fluent的udf中求解二阶导数的方法(The method of solving the two order derivative in the UDF of fluent)
FRAACUEQUATION
- 此程序是二维分数阶粘弹性声波有限差分法的正演模拟，时间导数二阶精度，空间分数阶导数2阶精度，含波长快照，未加边界，确保可运行。(This program is a two-dimensional fractional viscoelastic acoustic forward modeling of finite difference method, the time derivative second-order accuracy, space fractional order deriva