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Text File | 1996-04-07 | 4.3 KB | 216 lines | [TEXT/Tplt] |
- /* These are data points for a Descartes folium.
- They were generated using a polar coordinate parametrization:
- r = 3*cos(theta)*sin(theta)/(cos(theta)^3 + sin(theta)^3)
- The data are in cartesian coordinates, with the first column
- being x = r*cos(theta) and the second column y = r*sin(theta).
-
- Note that with this parametrization the curve is drawn twice
- as theta varies from 0 to 2*pi. Also, there is a sudden jump
- at theta = 3*pi/4 as the denominator goes to zero and x and y
- change sign. TPlot will connect the points, and as a result it
- looks as if it is drawing the curve's asymptote.
-
- To really see the folium, you should zoom in on the little loop
- around the origin. You should also choose "Proportional scale"
- in the view menu to see it undistorted... */
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-