📄 4_3.htm
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lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>0.0901<span
style="mso-spacerun: yes"> </span>-0.0135<span style="mso-spacerun:
yes"> </span>-0.0045<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'>3.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>矩阵求伪逆<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'>?pinv(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
lang=EN-US style='font-family:宋体;color:blue;mso-font-kerning:0pt'><span
style="mso-spacerun: yes"> </span>0.0901<span
style="mso-spacerun: yes"> </span>-0.0135<span style="mso-spacerun:
yes"> </span>-0.0045<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'>4.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>左右反转<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'>?fliplr(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>12<span
style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>10<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>4<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;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>6<span
style="mso-spacerun: yes"> </span>34<span
style="mso-spacerun: yes"> </span>98</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: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'>5.<span
style='font:7.0pt "Times New Roman"'> </span></span><span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>矩阵的特征值<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'>?[u,v]=eig(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'>u =<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>-0.2960<span style="mso-spacerun:
yes"> </span>0.3635<span style="mso-spacerun:
yes"> </span>-0.3600<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>-0.2925<span style="mso-spacerun:
yes"> </span>-0.4128<span style="mso-spacerun:
yes"> </span>0.7886<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>-0.9093<span style="mso-spacerun:
yes"> </span>-0.8352<span style="mso-spacerun:
yes"> </span>0.4985<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'>v =<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>48.8395<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: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<span style="mso-spacerun: yes"> </span>-19.8451<span
style="mso-spacerun: yes">
</span>0<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<span style="mso-spacerun:
yes"> </span>0<span
style="mso-spacerun: yes"> </span>-10.9943<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'>6.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>上下反转<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'>?flipud(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>98<span
style="mso-spacerun: yes"> </span>34<span
style="mso-spacerun: yes"> </span>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'><span
style="mso-spacerun: yes"> </span>34<span
style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>4<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'>10<span style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>12<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'>7.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>旋转<span lang=EN-US>90度<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'>?rot90(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>12<span
style="mso-spacerun: yes"> </span><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: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'>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: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'>8.<span
style='font:7.0pt "Times New Roman"'> </span></span>
<span
style='font-family:宋体;color:black;mso-font-kerning:0pt'>取出上三角和下三角<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'>?triu(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>10<span
style="mso-spacerun: yes"> </span><span style="mso-spacerun:
yes"> </span>2<span style="mso-spacerun: yes"> </span>12<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<span
style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>4<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<span
style="mso-spacerun: yes"> </span>0<span
style="mso-spacerun: yes"> </span>6<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'>?tril(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>10<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: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>34<span
style="mso-spacerun: yes"> </span>2<span
style="mso-spacerun: yes"> </span>0<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'>98<span style="mso-spacerun: yes"> </span>34<span
style="mso-spacerun: yes"> </span>6<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'>?[l,u]=lu(a)<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt;mso-pagination:widow-orphan'><span
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