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<title>矩阵函数</title>
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<p class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><b><span
style='font-size:26.0pt;mso-bidi-font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:blue'>矩阵函数</span></b><span
lang=EN-US style='font-size:12.0pt;font-family:宋体;mso-font-kerning:0pt'><o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center;mso-pagination:widow-orphan'><span
lang=EN-US style='font-size:12.0pt;font-family:宋体;mso-font-kerning:0pt'>
<hr size=2 width="100%" align=center>
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<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-pagination:
widow-orphan;mso-list:l0 level1 lfo2;tab-stops:list 21.0pt'> <span
lang=EN-US style='font-family:Wingdings;color:black;mso-font-kerning:0pt'>l<span
style='font:7.0pt "Times New Roman"'>
</span></span><span lang=EN-US style='color:black'>MATLAB</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:black'>常用数学函数</span><span lang=EN-US style='font-family:
宋体;color:black;mso-font-kerning:0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>这些数学函数一般都可以作为矩阵函数。<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>a=1:1:10;<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>b=0:10:90;<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>sin(a)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>Columns 1 through 7 <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>0.8415<span
style="mso-spacerun: yes"> </span>0.9093<span
style="mso-spacerun: yes"> </span>0.1411<span
style="mso-spacerun: yes"> </span>-0.7568<span style="mso-spacerun:
yes"> </span>-0.9589<span style="mso-spacerun: yes">
</span>-0.2794<span style="mso-spacerun: yes"> </span>0.6570<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>Columns 8 through 10 <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:2.0gd;text-indent:21.0pt;mso-pagination:
widow-orphan'><span lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:
0pt'>0.9894<span style="mso-spacerun: yes">
</span>0.4121<span style="mso-spacerun: yes"> </span>-0.5440<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>exp(b)<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>1.0e+039 *<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>Columns 1 through 7 <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0000<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>Columns 8 through 10 <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>0.0000<span
style="mso-spacerun: yes"> </span>0.0001<span
style="mso-spacerun: yes"> </span>1.2204<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>sign(a)<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<span
style="mso-spacerun: yes"> </span>1<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:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>mean(b)<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>45<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-pagination:
widow-orphan;mso-list:l0 level1 lfo2;tab-stops:list 21.0pt'><span
lang=EN-US style='font-family:Wingdings;color:black;mso-font-kerning:0pt'>l<span
style='font:7.0pt "Times New Roman"'>
</span></span> <span style='font-family:宋体;color:black;mso-font-kerning:
0pt'>求矩阵的长度的函数<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-pagination:widow-orphan'><span lang=EN-US
style='font-family:宋体;color:blue;mso-font-kerning:0pt'>?a=[10,2,12;34,2,4;98,34,6];<o:p></o:p></span></p>
<p class=MsoNormal style='mso-pagination:widow-orphan'><span lang=EN-US
style='font-family:宋体;color:blue;mso-font-kerning:0pt'>?size(a)<o:p></o:p></span></p>
<p class=MsoNormal style='mso-pagination:widow-orphan'><span lang=EN-US
style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:57.75pt;text-indent:-31.5pt;mso-pagination:
widow-orphan;mso-list:l2 level1 lfo8;tab-stops:list 57.75pt'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>3<span
style='font:7.0pt "Times New Roman"'>
</span></span> <span lang=EN-US style='font-family:宋体;color:blue;
mso-font-kerning:0pt'>3<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>?length(a)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5gd;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5gd;text-indent:26.25pt;mso-pagination:
widow-orphan'><span lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:
0pt'>3</span><span lang=EN-US style='font-family:宋体;color:black;mso-font-kerning:
0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:26.25pt;mso-pagination:widow-orphan'><span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>好好的看一下两者之间的区别。<span
lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-21.0pt;mso-pagination:
widow-orphan;mso-list:l0 level1 lfo2;tab-stops:list 21.0pt'> <span
lang=EN-US style='font-family:Wingdings;color:black;mso-font-kerning:0pt'>l<span
style='font:7.0pt "Times New Roman"'>
</span></span><span style='font-family:宋体;color:black;mso-font-kerning:
0pt'>矩阵的几种基本变换操作<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:42.0pt;text-indent:-21.0pt;mso-pagination:
widow-orphan;mso-list:l3 level1 lfo4;tab-stops:list 42.0pt'><span
lang=EN-US style='font-family:宋体;color:black;mso-font-kerning:0pt'>1.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";color:black'>通过在矩阵变量后加</span><span lang=EN-US
style='color:red'>’</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";color:black'>的方法来表示转置运算</span><span
lang=EN-US style='font-family:宋体;color:black;mso-font-kerning:0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>?a=[10,2,12;34,2,4;98,34,6];<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>?a'<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>10<span
style="mso-spacerun: yes"> </span>34<span
style="mso-spacerun: yes"> </span>98<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>34<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt;mso-pagination:
widow-orphan'><span lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:
0pt'>12<span style="mso-spacerun: yes"> </span>4<span
style="mso-spacerun: yes"> </span>6<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:42.0pt;text-indent:-21.0pt;mso-pagination:
widow-orphan;mso-list:l3 level1 lfo4;tab-stops:list 42.0pt'><span
lang=EN-US style='font-family:宋体;color:black;mso-font-kerning:0pt'>2.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>矩阵求逆<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>?inv(a)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'>ans =<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>-0.0116 <span
style="mso-spacerun: yes"> </span>0.0372<span
style="mso-spacerun: yes"> </span>-0.0015<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>0.0176<span
style="mso-spacerun: yes"> </span>-0.1047<span style="mso-spacerun:
yes"> </span>0.0345<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;mso-pagination:widow-orphan'><span
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