John, Andrzej - thanks! I will have to examine when to add a colon
and when not to. You guys are killing me - LOL.
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A colon is missing after range(20).
The following version works for me:
(but the indentation in this post may be broken)
x,y,z,t = var('x,y,z,t')
P = implicit_plot3d(x^2 +y^2 -z^2 ==1, (x,-3.2,3.2),(y,-3.2,3.2),
(z,-3,3),opacity=.2,color='blue')
for k in range(20):
P += parametric_plot3d([cos(
Try adding a colon at the end of "for k in range(20)"?
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John
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let me alter the first line to x,y,z,t = var('x,y,z,t')
On Sep 14, 5:49 pm, MathLynx wrote:
> What is wrong with
>
> x,y,z = var('x,y,z')
> P = implicit_plot3d(x^2 +y^2 -z^2 ==1, (x,-3.2,3.2),(y,-3.2,3.2),
> (z,-3,3),opacity=.2,color='blue')
> for k in range(20)
> P += parametric_plot3d([cos(
