matlab实验2MATLAB基础知识

matlab试验2MATLAB基础知识matlab试验2MATLAB基础知识1/2matlab试验2MATLAB基础知识试验2MATLAB基础知识试验目的熟识MATLAB的数据类型熟识MATLAB的基本矩阵操作熟识MATLAB的运算符熟识MATLAB的字符串处理试验内容创建结构体DataTypes,属性包含MATLAB支持的全部数据类型，并通过赋值构造结构体二维数组。DataTypes.char=char([65]);DataTypes.string='hello';DataT=100;DataTypes.single=1.560DataTypes=char:'A'string:'hello'int:100single:1.5600>>DataTypes(2).char=char([66]);DataTypes(2).string='kugou';DataTypes(2).int=200;DataTypes(2).single=3.14DataTypes=1x2structarraywithfields:charstringintsingle用满矩阵和稀疏矩阵存储方式分别构造下述矩阵。0100001000100000010000010A=答：A=1000010000100001B=0000A=0000010000100001A=0000110000100001A=0100110000100001A=0100100000100001S=sparse([1,2,3,4],[2,1,3,4],[1,1,1,1],4,5);D=full(D)D=01000100000010000010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的最终一列得到矩阵C，替换矩阵A的全部非零元素为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=[AB]A=1000010000100001B=0000A=0000010000100001A=0000110000100001A=0100110000100001A=0100100000100001C=01000100000010000010>>A=CA=01000100000010000010B=11111>>B=0100010000001000001011111C=0100100000100001A<ones(4,5)ans=10111011111101111101>>D=ans+ones(4,5)D=21222122222212222212>>a=size(A)b=size(B)c=size(C)d=size(D)a=45b=55c=44d=45给定矩阵E=rand(4,4),计算C+E,C.*E和C\E。>>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>>C\Eans=0.23110.76210.44470.73820.95010.89130.82140.92180.60680