from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A non-Euclidean system of geometry based on the postulate that within a plane every pair of lines intersects.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the branch of differential geometry that studies Riemannian manifolds
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (mathematics) a non-Euclidean geometry that regards space as like a sphere and a line as like a great circle
After Georg Friedrich Bernhard Riemann.(American Heritage® Dictionary of the English Language, Fourth Edition)
Riemannian + geometry (Wiktionary)
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