最新matlab实验2MATLAB基础知识

1、学习-好资料实验2 MATLAB基础知识一、实验目的1.熟悉MATLAB的数据类型2.熟悉MATLAB的基本矩阵操作3.熟悉MATLAB的运算符4.熟悉MATLAB的字符串处理二、实验内容1. 创建结构体DataTypes属性包含MATLAB支持的所有数据类型，并通过赋值构 造结构体二维数组。DataTypes.char=char(65);DataTypes.stri ng='hello'DataTypes.i nt=100;DataTypes.s in gle=1.560DataTypes =char: 'A'stri ng: 'hello'i

2、nt: 100si ngle: 1.5600>> DataTypes(2).char=char(66);DataTypes(2).stri ng='kugou'DataTypes(2).i nt=200;DataTypes(2).si ngle=3.14DataTypes =1x2 struct array with fields:charstri ngintsin gle2. 用满矩阵和稀疏矩阵存储方式分别构造下述矩阵。r01000 f10000A=00100更多精品文档00010 J学习 好资料答：A1000010000100001B0000A000001000

3、0100001A0000110000100001A0100110000100001A0100100000100001S=sparse(1,2,3,4,2,1,3,4,1,1,1,1,4,5);D=full(D)D =0 10001 00000 01000 00103. 在矩阵 A 末尾增加一行（元素全为1）得到矩阵B,删除矩阵A的最后一列得到矩阵C,替换矩阵A的所有非零元素为2得到矩阵D。分别查看矩阵(A,B,C,D ) 的长度。答：A=eye(4) B=zeros(4,1)A(1,1)=0A(2,1)=1A(1,2)=1A(2,2)=0C=A BA =1000010000100001B =0

4、000A =000001000010学习 -好资料0001A=0000110000100001A=0100110000100001A=0100100000100001C=01000100000010000010>> A=CA =01000100000010000010B =11111>>B =0100010000001000001011111C =0100100000100001A<ones(4,5)ans =10111011111101111101>> D=ans+ones(4,5)D =21222122222212222212>> a=

5、size(A) b=size(B) c=size(C) d=size(D) a =4 5 b =5 5 c =44d =454.给定矩阵 E=rand(4,4)计算 C+E, C.*E 和 CE。 >> E=rand(4,4)E =0.95010.89130.82140.92180.23110.76210.44470.73820.60680.45650.61540.17630.48600.01850.79190.4057>> C+Eans =0.95011.89130.82140.92181.23110.76210.44470.73820.60680.45651.61540.17630.48600.01850.79191.4057>> C.*Eans =00.8913000.2311000000.615400000.4057>> CEans =0.23110.76210.44470.73820.95010.89130.82140.92180.60680.45650.61540.17630.48600.01850.79190.4057学习 好资料0 的个数5. 将 10 进制的 80 转换为二进制的字符串，并从中查找 答：dec2bin(80)ans =1010