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</xml><![endif]--></span><span style=3D'font-family:SimSun;mso-ascii-font-f=
amily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>。</span><=
/p>
<p class=3DMsoNormal align=3Dleft style=3D'text-align:left;text-indent:21.0=
pt'><span
lang=3DEN-US>solver</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>为命=
令</span><span
lang=3DEN-US>ode45</span><span style=3D'font-family:SimSun;mso-ascii-font-f=
amily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>,</span><=
span
lang=3DEN-US>ode23</span><span style=3D'font-family:SimSun;mso-ascii-font-f=
amily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>,</span><=
span
lang=3DEN-US>ode113</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>,</span><=
span
lang=3DEN-US>ode15s</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>,</span><=
span
lang=3DEN-US>ode23s</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>,</span><=
span
lang=3DEN-US>ode23t</span><span style=3D'font-family:SimSun;mso-ascii-font-=
family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>,</span><=
span
lang=3DEN-US>ode23tb</span><span style=3D'font-family:SimSun;mso-ascii-font=
-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>之一=
,这些命令各有特点=
2290;我们列表说明如下ᦂ=
6;</span></p>
<table class=3DMsoTableGrid border=3D1 cellspacing=3D0 cellpadding=3D0
style=3D'border-collapse:collapse;border:none;mso-border-alt:solid windowt=
ext .5pt;
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<tr style=3D'mso-yfti-irow:0;mso-yfti-firstrow:yes'>
<td width=3D55 style=3D'width:41.4pt;border:solid windowtext 1.0pt;mso-bo=
rder-alt:
solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>求解器</span><=
span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
<td width=3D72 style=3D'width:54.0pt;border:solid windowtext 1.0pt;border=
-left:
none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windo=
wtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span lan=
g=3DEN-US
style=3D'font-size:9.0pt'>ODE</span><span style=3D'font-size:9.0pt;font-f=
amily:
SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Tim=
es New Roman"'>类型</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
<td width=3D300 style=3D'width:225.0pt;border:solid windowtext 1.0pt;bord=
er-left:
none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windo=
wtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>特点</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
<td width=3D142 style=3D'width:106.8pt;border:solid windowtext 1.0pt;bord=
er-left:
none;mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windo=
wtext .5pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>说明</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:1'>
<td width=3D55 style=3D'width:41.4pt;border:solid windowtext 1.0pt;border=
-top:
none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid window=
text .5pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span lan=
g=3DEN-US
style=3D'font-size:9.0pt'>ode45<o:p></o:p></span></p>
</td>
<td width=3D72 style=3D'width:54.0pt;border-top:none;border-left:none;bor=
der-bottom:
solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;mso-border-top=
-alt:
solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-borde=
r-alt:
solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>非刚性</span><=
span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
<td width=3D300 style=3D'width:225.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid window=
text .5pt;
mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>一步算法=
,</span><span
lang=3DEN-US style=3D'font-size:9.0pt'>4,5</span><span style=3D'font-size=
:9.0pt;
font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font=
-family:
"Times New Roman"'>阶</span><span class=3DSpellE><span lang=3DEN-US
style=3D'font-size:9.0pt'>Runge-Kutta</span></span><span style=3D'font-si=
ze:9.0pt;
font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font=
-family:
"Times New Roman"'>方法累积截断෾=
3;差</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><sub><!--[if gte vml 1]><v:shape i=
d=3D"_x0000_i1030"
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<v:imagedata src=3D"sy15.files/image011.wmz" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D37 height=3D24
src=3D"sy15.files/image012.gif" v:shapes=3D"_x0000_i1030"><![endif]></sub=
><!--[if gte mso 9]><xml>
<o:OLEObject Type=3D"Embed" ProgID=3D"Equation.DSMT4" ShapeID=3D"_x0000_=
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</xml><![endif]--><o:p></o:p></span></p>
</td>
<td width=3D142 style=3D'width:106.8pt;border-top:none;border-left:none;
border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid window=
text .5pt;
mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>大部分场=
合的首选算法</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:2'>
<td width=3D55 style=3D'width:41.4pt;border:solid windowtext 1.0pt;border=
-top:
none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid window=
text .5pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span lan=
g=3DEN-US
style=3D'font-size:9.0pt'>ode23<o:p></o:p></span></p>
</td>
<td width=3D72 style=3D'width:54.0pt;border-top:none;border-left:none;bor=
der-bottom:
solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;mso-border-top=
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solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-borde=
r-alt:
solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>非刚性</span><=
span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
<td width=3D300 style=3D'width:225.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid window=
text .5pt;
mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>一步算法=
,</span><span
lang=3DEN-US style=3D'font-size:9.0pt'>2,3</span><span style=3D'font-size=
:9.0pt;
font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font=
-family:
"Times New Roman"'>阶</span><span class=3DSpellE><span lang=3DEN-US
style=3D'font-size:9.0pt'>Runge-Kutta</span></span><span style=3D'font-si=
ze:9.0pt;
font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font=
-family:
"Times New Roman"'>方法累积截断෾=
3;差</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><sub><!--[if gte vml 1]><v:shape i=
d=3D"_x0000_i1031"
type=3D"#_x0000_t75" style=3D'width:27.75pt;height:18pt' o:ole=3D"">
<v:imagedata src=3D"sy15.files/image011.wmz" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D37 height=3D24
src=3D"sy15.files/image012.gif" v:shapes=3D"_x0000_i1031"><![endif]></sub=
><!--[if gte mso 9]><xml>
<o:OLEObject Type=3D"Embed" ProgID=3D"Equation.DSMT4" ShapeID=3D"_x0000_=
i1031"
DrawAspect=3D"Content" ObjectID=3D"_1237614475">
</o:OLEObject>
</xml><![endif]--><o:p></o:p></span></p>
</td>
<td width=3D142 style=3D'width:106.8pt;border-top:none;border-left:none;
border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid window=
text .5pt;
mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>使用于精=
度较低的情形</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
</tr>
<tr style=3D'mso-yfti-irow:3'>
<td width=3D55 style=3D'width:41.4pt;border:solid windowtext 1.0pt;border=
-top:
none;mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid window=
text .5pt;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span lan=
g=3DEN-US
style=3D'font-size:9.0pt'>ode113<o:p></o:p></span></p>
</td>
<td width=3D72 style=3D'width:54.0pt;border-top:none;border-left:none;bor=
der-bottom:
solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;mso-border-top=
-alt:
solid windowtext .5pt;mso-border-left-alt:solid windowtext .5pt;mso-borde=
r-alt:
solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>非刚性</span><=
span
lang=3DEN-US style=3D'font-size:9.0pt'><o:p></o:p></span></p>
</td>
<td width=3D300 style=3D'width:225.0pt;border-top:none;border-left:none;
border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;
mso-border-top-alt:solid windowtext .5pt;mso-border-left-alt:solid window=
text .5pt;
mso-border-alt:solid windowtext .5pt;padding:0cm 5.4pt 0cm 5.4pt'>
<p class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><span
style=3D'font-size:9.0pt;font-family:SimSun;mso-ascii-font-family:"Times =
New Roman";
mso-hansi-font-family:"Times New Roman"'>多步法,=
</span><span
lang=3DEN-US style=3D'font-size:9.0pt'>Adams</span><span style=3D'font-si=
ze:9.0pt;
font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-hansi-font=
-family:
"Times New Roman"'>算法,高低精ॷ=
0;均可达到</span><span
lang=3DEN-US style=3D'font-size:9.0pt'><sub><!--[if gte vml 1]><v:shape i=
d=3D"_x0000_i1032"
type=3D"#_x0000_t75" style=3D'width:54pt;height:15.75pt' o:ole=3D"">
<v:imagedata src=3D"sy15.files/image013.wmz" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D72 height=3D21
src=3D"sy15.files/image014.gif" v:shapes=3D"_x0000_i1032"><![endif]></sub=
><!--[if gte mso 9]><xml>
<o:OLEObject Type=3D"Embed" ProgID=3D"Equation.DSMT4" ShapeID=3D"_x0000_=
i1032"
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