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<pre>
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<pre>
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     x=(1-s)*cos(t+pi*s)+s*cos(2*t)
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     x=(1-s)*cos(t+pi*s)+s*cos(2*t)
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     y=(1-s)*sin(t+pi*s)-s*sin(2*t)
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     y=(1-s)*sin(t+pi*s)-s*sin(2*t)
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</pre>
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</pre>
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  (¦¹³B s ¥Nªí©w¸q©ó
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  (¦¹³B s ¥Nªí©w¸q©ó
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  <font color="red">­y¸ñ°Êµe</font>¤¤ªº``§Ç¦C°Ñ¼Æ''¡C)
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  <span class="wims_emph">­y¸ñ°Êµe</span>¤¤ªº``§Ç¦C°Ñ¼Æ''¡C)
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<li>Åܼƪº­È°ì¡G
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<li>Åܼƪº­È°ì¡G
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<pre>
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<pre>
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     -1&lt;x&lt;1, -1&lt;y&lt;1, 0&lt;t&lt;2*pi.
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     -1&lt;x&lt;1, -1&lt;y&lt;1, 0&lt;t&lt;2*pi.
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</pre>
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</pre>
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</ul>
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</ul>
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±z¤]¥i¥H
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±z¤]¥i¥H
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!href module=tool/geometry/animtrace.en&cmd=new&type=parametric2D&x1=(1-s)*cos(t+pi*s)+s*cos(2*t)&y1=(1-s)*sin(t+pi*s)-s*sin(2*t)&tleft=0&tright=2*pi&xleft=-1&xright=1&yleft=-1&yright=1&special_parm=noshow ª½±µ¸ü¤J³]©w
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!href module=tool/geometry/animtrace.en&cmd=new&type=parametric2D&x1=(1-s)*cos(t+pi*s)+s*cos(2*t)&y1=(1-s)*sin(t+pi*s)-s*sin(2*t)&tleft=0&tright=2*pi&xleft=-1&xright=1&yleft=-1&yright=1&special_parm=noshow ª½±µ¸ü¤J³]©w
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 <font color="red">­y¸ñ°Êµe</font>
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 <span class="wims_emph">­y¸ñ°Êµe</span>
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¥H¦Û¦æø»s¥»¼Ð»x¡C
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¥H¦Û¦æø»s¥»¼Ð»x¡C
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<p>
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<p>
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ø»s¤é´Á¡G 03-27-1998, &copy; XIAO, Gang.
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ø»s¤é´Á¡G 03-27-1998, &copy; XIAO, Gang.
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<p><hr/></p>  <div class="wimscenter">
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<p><hr/></p>  <div class="wimscenter">
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!href module=home ¦^ WIMS ­º­¶
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!href module=home ¦^ WIMS ­º­¶