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33 | reyssat | 1 | |
2 | <center><h1> |
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3 | The logo of WIMS |
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4 | </h1> |
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5 | <p> |
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5765 | bpr | 6 | <img src="gifs/logo-160.gif" align="middle" alt="logo"/> |
33 | reyssat | 7 | </center> |
8 | <p>The curve represents the trace of a point on a disk of radius 1 rotating |
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9 | inside a fixed circle of radius 3. And the deformation of the curve |
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10 | represents what happens when the distance of the point towards the center of |
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11 | the moving disk varies from 0 to infinity. |
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12 | <p> |
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13 | This animated logo is created by the application |
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14 | !href module=tool/geometry/animtrace Tracés animés |
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15 | under Wims. |
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16 | <p> |
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17 | <ul> |
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18 | <li>Type of plotting: parametric curve in 2D. |
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19 | <li>Equations: |
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20 | <pre> |
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21 | x=(1-s)*cos(t+pi*s)+s*cos(2*t) |
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22 | y=(1-s)*sin(t+pi*s)-s*sin(2*t) |
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23 | </pre> |
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24 | (where s is the ``sequentiel parameter'' as defined in |
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3970 | bpr | 25 | <font color="red">Tracés animés</font>.) |
33 | reyssat | 26 | <li>Ranges of variables: |
27 | <pre> |
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28 | -1<x<1, -1<y<1, 0<t<2*pi. |
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29 | </pre> |
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30 | </ul> |
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31 | You may |
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32 | !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 load directly these settings |
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3970 | bpr | 33 | into the menu of <font color="red">Tracés animés</font> |
33 | reyssat | 34 | to plot it yourself. |
35 | <p> |
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36 | Date of creation 03-27-1998, © XIAO, Gang. |
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5765 | bpr | 37 | <p><hr/></p> <div class="wimscenter"> |
33 | reyssat | 38 | !href module=home Back to wims |
1161 | bpr | 39 | </div> |
5765 | bpr | 40 | </div> |