matlab1.htm

经典的matlab入门指导手册

style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小提示：变数命名的规则</SPAN><SPAN 
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<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">1.</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">第一个字母必须是英文字母</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> 2.</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">字母间不可留空格</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> 3.</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">最多只能有</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">19</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">个字母，</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">MATLAB</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">会忽略多馀字母</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN><SPAN 
style="mso-spacerun: yes">&nbsp;</SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">我们可以随意更改、增加或删除向量的元素：</SPAN><SPAN 
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style="mso-spacerun: yes">&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y(3) = 2 % </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">更改第三个元素</SPAN><SPAN 
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style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y =3 7 2 5<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y(6) = 10 % </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">加入第六个元素</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y = 3 7 2 5 0 10<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y(4) = [] % </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">删除第四个元素，</SPAN><SPAN 
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style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y = 3 7 2 0 10<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在上例中，</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">MATLAB</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">会忽略所有在百分比符号（</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">%</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）之後的文字，因此百分比之後的文字均可视为程式的注解（</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">Comments</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">MATLAB</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">亦可取出向量的一个元素或一部份来做运算：</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">x(2)*3+y(4) % </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">取出</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">x</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的第二个元素和</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的第四个元素来做运算</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">ans = 9<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y(2:4)-1 % </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">取出</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">y</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的第二至第四个元素来做运算</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">ans = 6 1 -1<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在上例中，</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">2:4</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">代表一个由</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">2</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">3</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">4</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组成的向量</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes"></SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">若对</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">MATLAB</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数用法有疑问，可随时使用</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">来寻求线上支援（</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">on-line 
help</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）：</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help 
linspace<SPAN style="mso-spacerun: yes">&nbsp;&nbsp; 
</SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小整理：</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">MATLAB</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的查询命令</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> 
<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">：用来查询已知命令的用法。例如已知</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">inv</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是用来计算反矩阵，键入</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help 
inv</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">即可得知有关</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">inv</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">命令的用法。（键入</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help 
help</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">则显示</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的用法，请试看看！）</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> 
lookfor</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">：用来寻找未知的命令。例如要寻找计算反矩阵的命令，可键入</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> lookfor 
inverse</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">MATLAB</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">即会列出所有和关键字</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">inverse</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相关的指令。找到所需的命令後</SPAN><SPAN 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，即可用</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">help</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">进一步找出其用法。（</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">lookfor</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">事实上是对所有在搜寻路径下的</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">M</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">档案进行关键字对第一注解行的比对，详见後叙。）</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将列向量转置（</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">Transpose</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）後，即可得到行向量（</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">Column 
vector</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）：</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">z = x'<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">z = 4.0000<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>5.2000<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>6.4000<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>7.6000<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>8.8000<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>10.0000<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">不论是行向量或列向量，我们均可用相同的函数找出其元素个数、最大值、最小值等：</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">length(z) % z</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的元素个数</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">ans = 6<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">max(z) % z</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的最大值</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">ans = 10<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">min(z) % z</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的最小值</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">ans =<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>4<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">小整理：适用於向量的常用函数有：</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt"> 
<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US 
style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">min(x): </SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">向量</SPAN><SPAN 
lang=EN-US style="FONT-SIZE: 12pt; mso-bidi-font-size: 10.0pt">x</SPAN><SPAN 
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font