| Construct the intersection of the cylinder
(x - 0.5)2 + y2 = 0.25 and the sphere x2 + y2 + z2 =1. |
| Construct the part of the cylinder
(x - 0.5)2 + y2 = 0.25 lying inside the sphere x2 + y2 + z2 =1. |
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| Construct this model of the "icecream": | ||
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Construct this model of the "icecream": |
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| Construct the portion enclosed by the surfaces z = -x2 + 1/2 and z = y2 - 1/2. |
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| Construct three disjoint rings each encloses the other two. |
| Construct these
Borromean rings. ¡@ ¡@ |