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I have made a simple helix using ParametricPlot3D:

ParametricPlot3D[{Cos[x], Cos[x], x}, {x, 0, 10}]

I want to add a a continuous 'fill' connecting the curve to the line y=0, z=0 (in other words, the x axis). The result should look something like an Archimedes screw.

It seems to me that this should be simple, but I can't find anything telling me how. Suggestions?

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  • $\begingroup$ Perhaps this may help_http://demonstrations.wolfram.com/ArchimedeanScrew/ $\endgroup$ Commented May 15, 2018 at 21:07

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ParametricPlot3D[{r Cos[x], r Sin[x], x}, {x, 0, 10}, {r, 0, 1}]

enter image description here

Note that it's better to use also a Sin if you'd like to have a true helix...

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