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php GD库 类
资源描述水印：把指定水印复制到目标上，加透明效果
缩略图：把大尺寸图片复制到小尺寸图像上
验证码：随机生成中文或英文数字
- 2022-04-27 13:25:27下载
- 积分：1
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该代码是《科学与工程数值算法》（visual C++实现）一书中的源代码，里面包括常见的数值算法的实现，主要包括复数运算、矩阵运算、线性方程组的求解、非线性方程...
该代码是《科学与工程数值算法》（visual C++实现）一书中的源代码，里面包括常见的数值算法的实现，主要包括复数运算、矩阵运算、线性方程组的求解、非线性方程组的求解以及差值和数值积分的实现。-The code is " Science and Engineering, Numerical Algorithms" (visual C++ to achieve) the book" s source code, which include the common realization of numerical algorithm, including complex calculations, matrix operations, linear equations, nonlinear equations, as well as the margin and the achievement of numerical integration.
- 2022-01-31 18:20:24下载
- 积分：1
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ansj分词停词代码
使用中文分词包ansj进行分词停词的代码使用中文分词包ansj进行分词停词的代码使用中文分词包ansj进行分词停词的代码使用中文分词包ansj进行分词停词的代码使用中文分词包ansj进行分词停词的代码使用中文分词包ansj进行分词停词的代码
- 2022-07-13 00:30:03下载
- 积分：1
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平面三角形单元有限元计算程序，能算各种以三角形单元划分的平面问题
平面三角形单元有限元计算程序，能算各种以三角形单元划分的平面问题
-Plane triangular element finite element program that can count a variety of triangular element into the plane problem
- 2022-01-26 00:09:11下载
- 积分：1
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循环队列的Java对象容器。
循环队列的Java对象容器。-cycle cohort of Java objects containers.
- 2022-08-26 02:16:53下载
- 积分：1
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雷达数据处理
对雷达数据处理的单目标，多传感器的matlab源程序，简单的卡尔曼滤波算法，初学的朋友们可以看看
- 2022-02-19 23:24:19下载
- 积分：1
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产生指数分布随机数的程序
产生指数分布随机数的程序-index generated random distribution of the process
- 2022-08-13 23:55:53下载
- 积分：1
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一个简单好用的B+树算法实现
一个简单好用的B+树算法实现- A simple easy to use B tree algorithm realizes
- 2022-04-30 07:22:42下载
- 积分：1
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Biblioteca
#包括；
- 2023-07-07 23:10:03下载
- 积分：1
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平均因子分解法应用于正定矩阵
平均因子分解法，适用于正定矩阵First, let s recall the definition of the Cholesky decomposition: Given a symmetric positive definite square matrix X, the Cholesky decomposition of X is the factorization X=U U, where U is the square root matrix of X, and satisfies:
(1) U U = X
(2) U is upper triangular (that is, it has all zeros below the diagonal).
It seems that the assumption of positive definiteness is necessary. Actually, it is "positive definite" which guarantees the existence of such kind of decomposition. -Average factor decomposition method applied to positive definite matrix First, let s recall the definition of the Cholesky decomposition: Given a symmetric positive definite square matrix X, the Cholesky decomposition of X is the factorization X = UU, where U is the square root matrix of X, and satisfies: (1) UU = X (2) U is upper triangular (that is, it has all zeros below the diagonal). It seems that the assumption of positive definiteness is necessary. Actually, it is positive
- 2022-10-16 04:30:02下载
- 积分：1
