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style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>的矩阵</span><span lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'>» x=linspace(0,1,100);</span><span lang=EN-US
style='color:red'> </span><span lang=EN-US style='color:blue'>% </span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>利用</span><span lang=EN-US style='color:blue'>linspace</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>，以区隔起始值</span><span lang=EN-US style='color:blue'>=0</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>终止值</span><span lang=EN-US style='color:blue'>=1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>之间的元素数目</span><span lang=EN-US style='color:blue'>=100<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'>»a=[]%</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>空矩阵</span><span
lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'>a =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes">
</span>[]<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'>» zeros(2,2)%</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>全为</span><span
lang=EN-US style='color:blue'>0</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>的矩阵</span><span
lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes">
</span>0<span style="mso-spacerun: yes"> </span>0<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:78.75pt;text-indent:-31.5pt;mso-list:
l2 level1 lfo6;tab-stops:list 78.75pt'><span lang=EN-US
style='color:blue'>0<span style='font:7.0pt "Times New Roman"'>
</span></span> <span lang=EN-US style='color:blue'>0<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:blue'><span
style="mso-spacerun: yes"> </span>» ones(3,3) %</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>全为</span><span lang=EN-US style='color:blue'>1</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:blue'>的矩阵</span><span lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-char-indent-count:2.0;
mso-char-indent-size:10.5pt;mso-char-indent-size:10.5pt'><span lang=EN-US
style='color:blue'>ans =<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:blue'><span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:blue'><span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>1<span style="mso-spacerun: yes">
</span>1<span style="mso-spacerun: yes"> </span>1<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>» rand(2,4);</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>随机矩阵</span><span
lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>»a=1:7, b=1:0.2:5;%</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:blue'>更直接的方式</span><span lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>»c=[b a];</span><span lang=EN-US style='color:red'> </span><span
lang=EN-US style='color:blue'>%</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>可利用先前建立的阵列</span><span
lang=EN-US style='color:blue'> a </span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>及阵列</span><span
lang=EN-US style='color:blue'> b </span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>，组成新阵列</span><span
lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>» a=1:1:10;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>» b=0.1:0.1:1;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>» a+b*I%</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>复数阵列</span><span
lang=EN-US style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes"> </span>Columns 1
through 4 <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes"> </span>1.0000 +
0.1000i<span style="mso-spacerun: yes"> </span>2.0000 +
0.2000i<span style="mso-spacerun: yes"> </span>3.0000 +
0.3000i<span style="mso-spacerun: yes"> </span>4.0000 + 0.4000i<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes"> </span>Columns 5
through 8<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes"> </span>5.0000 +
0.5000i<span style="mso-spacerun: yes"> </span>6.0000 +
0.6000i<span style="mso-spacerun: yes"> </span>7.0000 +
0.7000i<span style="mso-spacerun: yes"> </span>8.0000 + 0.8000i<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes"> </span>Columns 9
through 10 <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt'><span lang=EN-US
style='color:blue'><span style="mso-spacerun: yes"> </span>9.0000 +
0.9000i<span style="mso-spacerun: yes"> </span>10.0000 + 1.0000i<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.5gd'><span style='font-family:宋体'>在<span
lang=EN-US>MATLAB的内部资料结构中，每一个矩阵都是一个以行为主（Column-oriented）的阵列（Array）因此对於矩阵元素的存取，我们可用一维或二维的索引（Index）来定址<o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-list:l0 level1 lfo7;
tab-stops:list 21.0pt'> <span lang=EN-US style='font-family:
Wingdings'>l<span style='font:7.0pt "Times New Roman"'>
</span></span><span style='font-family:宋体'>子矩阵<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span style='font-family:宋体'>通过一个矩阵产生另一个矩阵的方法（上面已经有例子）<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span style='font-family:宋体'>假如一个矩阵<span
lang=EN-US>A<o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US
style='font-family:宋体'><span style="mso-spacerun: yes">
</span>则 A（m1:m2 ,n1:n2）<o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-size:12.0pt;font-family:宋体;mso-font-kerning:0pt'>
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mso-bidi-language:AR-SA'><br clear=all style='page-break-before:always'>
</span>
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