Cylindrical and Spherical 3D Plots

[LeeSoomoon]

i study wxMaxima by youtube channel.(https://youtu.be/jvt3ijykTTI?si=xjWXqTLhmE0pnusf)

now i have a problem.

wxplot3d(5*(1-cos(t)), [t,0,2*%pi], [z,0,5],
[gnuplot_postamble, "set mapping cylindrical"])$

his result is

my result is

what is different?

[bolimbo]

Hi. I got the same result as you. As a workaround you could use: draw3d(cylindrical(5*(1-cos(t)),z,0,5,t,0,2*π))$. I have wxMaxima version 23.05.1 on Win 11

[bolimbo]

To keep things inside wxMaxima and to get the plot inline:
wxdraw3d(enhanced3d=true,cylindrical(5*(1-cos(t)),z,0,5,t,0,2*π));

[gunterkoenigsmann]

My question now is: Has something in maxima changed that causes the plot to be different to how it was when the video was made? And if the answer is yes: Is the change you see intended? If you replace wxplot by plot you might get an answer in the maxima-discuss mailing list at https://sourceforge.net/p/maxima/mailman/maxima-discuss/: Not that you have found a bug that needs reporting...