Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In the mathematical field of differential geometry, the Levi-Civita parallelogramoid is a certain figure generalizing a parallelogram to a curved space. It is named for its discoverer, Tullio Levi-Civita. It generalizes a parallelogram in that the sides AA and BB are parallel (via parallel transport) and the same length, but the last side A B will not in general be parallel to or the same length as the side AB, though it will be straight (a geodesic).

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