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SnapPea is free software designed to help mathematicians, in particular low-dimensional topologists, study hyperbolic 3-manifolds. The primary developer is Jeffrey Weeks , who created the first version [ 1 ] as part of his doctoral thesis, [ 2 ] supervised by William Thurston .
The snap pea is a cool season legume. It may be planted in spring as early as the soil can be worked. Seeds should be planted 25–40 mm (1– 1 + 1 ⁄ 2 in) apart and 15–25 mm (1 ⁄ 2 –1 in) deep in a 75 mm (3 in) band. [6]
SnapPea implements an algorithm to convert a planar knot or link diagram into a cusped triangulation. This algorithm has a roughly linear run-time in the number of crossings in the diagram, and low memory profile.
Dunfield is an expert in group theory, low-dimensional topology, three-manifolds, and computational aspects of these fields. He is also, with Marc Culler, one of the key developers of the program SnapPy, [3] the modern version of Jeffrey Weeks' program SnapPea.
SnapPea's cusp view: the Borromean rings complement from the perspective of an inhabitant living near the red component. Geometry lets us visualize what the inside of a knot or link complement looks like by imagining light rays as traveling along the geodesics of the geometry.
4 1 knot. In mathematics, a hyperbolic link is a link in the 3-sphere with complement that has a complete Riemannian metric of constant negative curvature, i.e. has a hyperbolic geometry.
Pea (pisum in Latin) is a pulse, vegetable or fodder crop, but the word often refers to the seed or sometimes the pod of this flowering plant species. Carl Linnaeus gave the species the scientific name Pisum sativum in 1753 (meaning cultivated pea).
Many crop plants are known as peas, particularly . Pisum sativum. pea; marrowfat peas; snap pea; snow pea; split pea; and: chickpea, Cicer arietinum; cowpea, Vigna ...