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si-font-family:
"Times New Roman"'>&#36825;&#26679;&#65292;&#32467;&#21512;</span><span
class=3DSpellE><span lang=3DEN-US>Matlab</span></span><span style=3D'font-f=
amily:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times=
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class=3DSpellE><span lang=3DEN-US>int</span></span><span lang=3DEN-US>()</s=
pan><span
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si-font-family:
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2;&#12290;</span></p>

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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>6</span><span
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si-font-family:
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&#20613;&#31435;&#21494;&#32423;&#25968;&#12290;</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left'><span style=3D'=
font-family:
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p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
class=3DGramE><span lang=3DEN-US>clear</span></span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
class=3DSpellE><span class=3DGramE><span lang=3DEN-US>syms</span></span></s=
pan><span
lang=3DEN-US> x n</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
lang=3DEN-US>f=3Dx^2</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
lang=3DEN-US>a0=3D<span class=3DSpellE><span class=3DGramE>int</span></span=
><span
class=3DGramE>(</span><span class=3DSpellE>f,x,-pi,pi</span>)/pi</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
class=3DGramE><span lang=3DEN-US>an=3D</span></span><span class=3DSpellE><s=
pan
lang=3DEN-US>int</span></span><span lang=3DEN-US>(f*<span class=3DSpellE>co=
s</span>(n*x),x,-<span
class=3DSpellE>pi,pi</span>)/pi</span></p>

<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
class=3DSpellE><span class=3DGramE><span lang=3DEN-US>bn</span></span></spa=
n><span
class=3DGramE><span lang=3DEN-US>=3D</span></span><span class=3DSpellE><span
lang=3DEN-US>int</span></span><span lang=3DEN-US>(f*sin(n*x),x,-<span class=
=3DSpellE>pi,pi</span>)/pi</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=