3、D、~E
4、~D和find(A>=10&A<25)一、实验结果及说明(2)1)A=1724181523571416
5、4613202210121921311182529B=237164132210193112592)A=1724181523571416461320221012192132211182529>>A(7)=[]A=Columns1through91723410112461218Columns10through18171319258142021Columns19through242151622393)>>A=magic(5)A=17241815235714164613202210121921311182529>>A=A+30A=47543138
6、455335374446343643505222404249513341485532394)>>A=magic(5)A=17241815235714164613202210121921311182529>>size(A)ans=55>>whosNameSizeBytesClassA5x5200doublearray5)>>t=[1,2,3;4,5,6;0,7,8]t=12345607822>>find(t==0)ans=3>>t(ans)=epst=1.00002.00003.00004.00005.00006.00000.00007.0
7、0008.00006)>>x=[1,2,3,4,5,6,7,8,9,10,11,12]x=123456789101112>>y=reshape(x,3,4)y=1471025811369127)>>ch='12ab3d5Fg7'ch=12ab3d5Fg7>>abs(ch)22ans=49509798511005370103558)>>m=[114,115,116,117]m=114115116117>>char(m)ans=rstu(3)>>A=1:9A=123456789>>B=10-AB=9876543211)L1=000010000
8、2)L2=1111100003)L3=220001110004)L4=456(4)>>A=[23,10,-0.778,0;41,-45,65,5;32,5,0,32;6,-9.54,54,3.14]A=23.000010.0000-0.7780041.0000-45.000065.00005.000032.00005.0000032.00006.0000-9.540054.00003.1400>>B=A(1:3,1:4)B=23.000010.0000-0.7780041.0000-45.000065.00005.000032.00005
9、.0000032.0000>>C=A(1:4,1:2)C=23.000010.000041.0000-45.000032.00005.00006.0000-9.5400>>D=A(2:4,3:4)22D=65.00005.0000032.000054.00003.1400>>E=B*CE=1.0e+003*0.9141-0.22391.20802.71231.1330-0.2103>>E>E&Dans=110111>>E
10、Dans=22111111>>~E
11、~Dans=001000>>find(A>=10&A<2
12、5)ans=15一、实验代码(2)>>A=magic(5)>>B=A(2:5,1:2:5)2)>>A=magic(5)>>A(7)=[]3)>>A=magic(5)>>A=A+30224)>>