Mastering MATLAB Comprehensive Guide and Support

Learning Hadoop.pdf #### This document, Learning Hadoop.pdf, provides a deep dive into Hadoop's core components and frameworks. Key sections cover Hadoop architecture, MapReduce processes, HDFS configurations, and best practices for managing big data with Hadoop. Each chapter offers insights into building reliable data ecosystems and efficiently handling large datasets, essential for mastering Hadoop operations.

The Art of Assembly Language ProgrammingVisitor Count: As of October 17, 1996 Forward Why Would Anyone Learn This Stuff? Chapter Overview: What’s Wrong With Assembly Language? - Examining criticisms and limitations. What’s Right With Assembly Language? - Understanding the benefits and uses. Text Organization and Teaching Approach - Overview of pedagogical concerns and text layout. Section One: Machine Organization Chapter 1 - Data Representation 1.1 Numbering Systems 1.1.1 - Overview of the Decimal System. 1.1.2 - Introduction to the Binary System. 1.1.3 - Binary Formats. 1.2 Data Organization 1.2.1 - Bits 1.2.2 - Nibbles 1.2.3 - Bytes 1.2.4 - Words 1.2.5 - Double Words 1.3 Hexadecimal Numbering System - Exploring hexadecimal representations. Arithmetic and Logical Operations 1.4 - Arithmetic on Binary and Hexadecimal. 1.5 - Logical Operations on Bits. 1.6 - Logical Operations on Binary Numbers and Bit Strings. Additional Concepts in Binary Data 1.7 Signed and Unsigned Numbers - Differences and implications. 1.8 Sign and Zero Extension - Practical uses. 1.9 Shifts and Rotates - Binary manipulation techniques. 1.10 Bit Fields and Packed Data - Efficient data storage methods. 1.11 The ASCII Character Set - Text representation in binary. Summary Assembly Language provides a foundational understanding of data representation, bitwise operations, and direct memory manipulation, essential for optimizing code and achieving hardware-level control.

本书是一本很全的Matlab R2011a入门书籍，适合新手入门高版本的Matlab使用。

MatLab Demystified explores the essentials of MATLAB, offering a comprehensive introduction to the software for beginners.

MATLAB仿真实验

数据查询语言（Data Query Language, DQL） SELECT SELECT * FROM table_name: 用于从指定表中选取所有列。 WHERE 子句：用于过滤结果集，只返回满足条件的记录。 示例： SELECT * FROM stock_information WHERE stockid = 'nid' AND stockname = 'str_name' 使用 LIKE 进行模糊匹配：stockname LIKE '%findthis%' 表示匹配包含“findthis”的字符串。 特殊的 LIKE 表达式：stockname LIKE '[a-zA-Z]%' 表示以字母开头的字符串；stockname LIKE '^[^F-M]%' 表示排除 F 到 M 之间的字母开头的字符串。 使用 OR 和 AND 组合多个条件：OR stockpath = 'stock_path' AND stockindex = 24 使用 NOT 关键字：NOT stocknumber = 10 使用 BETWEEN 指定一个范围：stocknumber BETWEEN 20 AND 100 使用 IN 指定一个值列表：stocknumber IN (10, 20, 30) 排序：ORDER BY stockid DESC 表示按降序排列；ORDER BY 1, 2 表示按第一列和第二列排序。 子查询：stockname = (SELECT stockname FROM stock_information WHERE stockid = 4) 表示内层查询的结果作为外层查询的条件。 DISTINCT SELECT DISTINCT column_name FROM table_name 用于返回唯一不重复的值。

多维数组三维及以上维数组生成ones(r,c,p,...)等，将数组变形成任意维reshape(B,2,3,3)，将数组复制成任意维repmat(c,[1 1 3])，沿指定维连接cat(3,a,b,c)。对应于运算符删除大小等于1的维squeeze，数组的维数ndims，flipdim(M,1)，沿指定维轮换顺序（此处为行），shiftdim(M,2)，第二个参数为正时，维轮换；第二个参数为负时，将数组的维数扩大。思考：与flipdim和shiftdim，permute(a,order)所对应的二维函数和使用注意事项。permute(a,order)对应于转置操作，.^，order必须作为第一个参数传递的数组的维数的排列，否则所要求的排列没有任何意义。与二维相似的运算：+ - .* ./ .^；size(m)，size(m,1)，numel(m)。

三、矩阵的操作 矩阵的大小测度 Size函数用来测试矩阵的大小，对于矩阵A，size(A)返回一个行向量，它包含了矩阵的行数m和列数n。如果专门显示行数和列数，则可以采用如下格式： 例9.已知矩阵，求矩阵的大小。

本书全面介绍了使用Node.js开发MongoDB应用的全过程，包括项目结构的构建和功能模块的实现。文中详细介绍了如何利用Express搭建服务器，并借助Mongoose实现数据模型管理及数据库操作。同时，书中提供了从基本配置到实际应用的逐步指导，适合开发者深入学习与实践。