Assertion: torus | /r/HasProperty | a product of two circles
Facets:
Source sentences:
text: As nouns the difference between toroid and torus is that toroid is (mathematics) a surface generated by a closed curve (especially a circle) rotating about, but not intersecting or containing, an axis in its own plane while torus is (topology) a topological space which is a product of two circles.
text: As a torus is the product of two circles, a modified version of the spherical coordinate system is sometimes used.
text: In context|topology|lang=en terms the difference between annulus and torus is that annulus is (topology) any topological space homeomorphic to the region in a plane between two concentric circles of different radius while torus is (topology) a topological space which is a product of two circles.
text: As nouns the difference between annulus and torus is that annulus is a ring- or donut-shaped area or structure while torus is (topology) a topological space which is a product of two circles.