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3;&#25968;&#30340;&#21644;&#12290;&#22312;</span><span
lang=3DEN-US>Matlab</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
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&#29992;&#20110;&#32423;&#25968;&#27714;&#21644;&#30340;&#21629;&#20196;&#2=
6159;</span><span
lang=3DEN-US>symsum()</span><span style=3D'font-family:SimSun;mso-ascii-fon=
t-family:
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&#21629;&#20196;&#30340;&#24212;&#29992;&#26684;&#24335;&#20026;&#65306;</s=
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<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt;
mso-char-indent-count:2.0'><span lang=3DEN-US><span
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>symsum(comiterm,v,a,b)</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left'><span style=3D'=
font-family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
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lang=3DEN-US>comiterm</span><span style=3D'font-family:SimSun;mso-ascii-fon=
t-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>&#20026;&#32423;=
&#25968;&#30340;&#36890;&#39033;&#34920;&#36798;&#24335;&#65292;</span><span
lang=3DEN-US>v</span><span style=3D'font-family:SimSun;mso-ascii-font-famil=
y:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>&#26159;&#36890;&#39033;&#20013;&#=
30340;&#27714;&#21644;&#21464;&#37327;&#65292;</span><span
lang=3DEN-US>a</span><span style=3D'font-family:SimSun;mso-ascii-font-famil=
y:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>&#21644;</span><span lang=3DEN-US>=
b</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#20998;&#21035;&#20026;&#27714;&#21644;&#21464;&#37327;=
&#30340;&#36215;&#28857;&#21644;&#32456;&#28857;&#12290;&#22914;&#26524;</s=
pan><span
lang=3DEN-US>a</span><span style=3D'font-family:SimSun;mso-ascii-font-famil=
y:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>&#65292;</span><span lang=3DEN-US>=
b</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#32570;&#30465;&#65292;&#21017;</span><span lang=3DEN-U=
S>v</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#20174;</span><span lang=3DEN-US>0</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#21464;&#21040;</span><span lang=3DEN-US>v-1</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#65292;&#22914;&#26524;</span><span lang=3DEN-US>v</spa=
n><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#20063;&#32570;&#30465;&#65292;&#21017;&#31995;&#32479;=
&#23545;</span><span
lang=3DEN-US>comiterm</span><span style=3D'font-family:SimSun;mso-ascii-fon=
t-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>&#20013;&#30340;=
&#40664;&#35748;&#21464;&#37327;&#27714;&#21644;&#12290;</span></p>

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5pt'><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#20363;</span><span lang=3DEN-US>1</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#65306;&#27714;&#32423;&#25968;</span><span lang=3DEN-U=
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<p class=3DMsoNormal align=3Dleft style=3D'text-align:left'><span style=3D'=
font-family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
 New Roman"'>&#35299;&#65306;&#21033;&#29992;</span><span
lang=3DEN-US>Matlab</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>&#20989;&#25968;=
</span><span
lang=3DEN-US>symsum</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>&#35774;&#35745;=
&#22914;&#19979;&#31243;&#24207;&#65306;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>clear</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>syms n</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>f1=3D(2*n-1)/2^n;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>f2=3D1/(n*(2*n+1));</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I1=3Dsymsum(f1,n,1,inf)</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I2=3Dsymsum(f2,n,1,inf)</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left'><span style=3D'=
font-family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
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<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I1 =3D3</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I2 =3D2-2*log(2)</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#26412;&#20363;&#26159;&#25910;&#25947;&#30340;&#24773;=
&#20917;&#65292;&#22914;&#26524;&#21457;&#25955;&#65292;&#21017;&#27714;&#2=
4471;&#30340;&#21644;&#20026;</span><span
lang=3DEN-US>inf</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>&#65292;&#22240;=
&#27492;&#65292;&#26412;&#26041;&#27861;&#23601;&#21487;&#20197;&#21516;&#2=
6102;&#29992;&#26469;&#35299;&#20915;&#27714;&#21644;&#38382;&#39064;&#2164=
4;&#25910;&#25947;&#24615;&#38382;&#39064;&#12290;</span></p>

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5pt'><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#20363;</span><span lang=3DEN-US>2</span><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>&#65306;&#27714;&#32423;&#25968;</span><span lang=3DEN-U=
S><sub><!--[if gte vml 1]><v:shape
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&#12290;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left'><span style=3D'=
font-family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
 New Roman"'>&#35299;&#65306;</span><span
lang=3DEN-US>Matlab</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>&#31243;&#24207;=
&#22914;&#19979;&#65306;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>clear</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>syms n x</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>f3=3Dsin(x)/n^2;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>f4=3D(-1)^(n-1)*x^n/n;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I3=3Dsymsum(f3,n,1,inf)</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I4=3Dsymsum(f4,n,1,inf)</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left'><span style=3D'=
font-family:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
 New Roman"'>&#36816;&#34892;&#32467;&#26524;&#20026;&#65306;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=
5pt'><span
lang=3DEN-US>I3 =3D1/6*sin(x)*pi^2</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.7=