I'm trying to plot the solid of revolution obtained by rotating the region enclosed by $y=x^{1/2}$ and $y=0$, with $x$ going from $0$ to $4$, about the line $x=5$.

{y==x^(1/2), y==0}

I cannot find any examples of it, only rotations about the line $x=0$.


closed as off-topic by Daniel Lichtblau, Henrik Schumacher, m_goldberg, Michael E2, chris Nov 21 '18 at 0:29

  • The question does not concern the technical computing software Mathematica by Wolfram Research. Please see the help center to find out about the topics that can be asked here.
If this question can be reworded to fit the rules in the help center, please edit the question.

  • 4
    $\begingroup$ Perhaps https://reference.wolfram.com/language/ref/RevolutionAxis.html will help $\endgroup$ – Bill Aug 19 '18 at 5:08
  • 4
    $\begingroup$ I'm voting to close this question as off-topic because it's a homework problem, with no effort shown, thus outside the scope of the forum. $\endgroup$ – Daniel Lichtblau Nov 19 '18 at 22:05

Maybe this is what you look for. Since the rotation axis does not contain the origin, we have to translate everything a little. Admittedly a bi inconvenient.

 {{t, 0}, {t, Sqrt[t + 5]}, {4 - 5, (t + 5)/2}},
 {t, -5, 4 - 5},
 PlotPoints -> 50

enter image description here


Not the answer you're looking for? Browse other questions tagged or ask your own question.