纯软件的光线追踪算法 可以满足你的要求

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本书共分６篇，第１篇统计学基础知识与ＳＡＳ软件应用技巧，介绍了统计学的基本概念和学习方法、试验设计入门、统计描述、ＳＡＳ软件应用入门、编写ＳＡＳ实用程序的技巧、单变量统计分析和利用SAS／GRAPH模块绘制常用统计图的方法。第２篇试验设计与定量资料的统计分析，介绍了与ｔ检验、非参数检验和各种方差分析有关的试验设计和数据处理方法。第３篇试验设计与定性资料的统计分析，介绍了处理二维及高维列联表资料的各种统计分析 方法，包括卡方检验、Fisher的精确检验、典型相关分析、logistic回归模型和对数线性模型等内容。第４篇试验设计与回归分析，介绍了回归分析的种类和选用方法、简单直线回归、多项式回归、简单曲线回归、多元线性回归、协方差分析、直接试验设计及其资料的回归分析等有关内容。第５篇生存分析，介绍了生存资料的特点、生存时间函数和生存分析 方法的分类等基本概念；生存资料的非参数分析方法、ＣＯＸ模型分析方法和参数模型的回归分析方法。第６篇多元统计分析，介绍了主成分分析、因子分析、对应分析、聚类分析、判别分析、典型相关分析。-The book is divided into six, a statistically based knowledge and skills in SAS software applications, introduced the basic concepts in statistics and learning methods, experimental design entry, statistical description of SAS software application entry, to prepare SAS utility skills, single variable statistical analysis and use SAS/GRAPH mapping module commonly used statistical map. The first two experimental design and quantitative analysis of the statistical data, presented with t-test, non- parametric tests and the analysis o

该程序是用C语言写的采用了动量方法的BP神经网络，它具有极其强大的扩展性，可用于函数的逼近及分类识别等各方面，语言书写规范，其中大量使用了动态分配一、二维数组的方法，该网络实例中实现的是对某一函数的逼近，输入层为二层，中间层可自己设定多达十几层，逼近精度非常精确。读者可根据自己的需要设定各层的数目以及相应的训练样本进行训练与测试。-The program is written in C language using the momentum method of BP neural network, which has extremely powerful scalability, can be used for function approximation and classification in areas such as language specification, including large-scale use of a dynamically allocated one, two dimensional array of methods, examples of the network realize that the approximation of a function, for the second input layer, middle layer can be set as many as a dozen layers, close to very precise accuracy. Readers may need to be set in accordance with its own number of floors and the corresponding training samples for training and testing.

datamatrix编码和解码的程序，没有原码

找出两个字符串的最长公共子串。 给出一个字符串，请删除该字符串的前导空格和尾随空格，中间的空格若多余1个删减到1个。 我是个菜鸟，但软件会是我终生的事业~我有信心学好它，希望站长通融-Two strings to find the longest common sub-string. Given a string, remove the string leading spaces and trailing spaces, if the extra spaces in the middle of a cut to one. I was a rookie, but the software will be my lifelong career ~ and I am confident to learn it, and hope that owners accommodation

中文的C语言算法书c-Chinese C-language algorithm book c

最小二乘法求平面VC小程序,在vc6.0环境下编译的一个简单的最小二乘平面拟合程序，压缩包中是一个完整的工程.

伪随机发生器用于测试图案发生器为内置自检 DIFFERENET 传输线下测试像加法器乘数或任何这些随机测试生成器将生成的测试序列，将用于电路的功能测试