three-dimensional case of the more general concept of a Euclidean simplex, and may thus also be called a 3-simplex. The tetrahedron is one kind of pyramid, which is a...

Schläfli orthoscheme is a type of simplex. The orthoscheme is the generalization of the right triangle to simplex figures of any number of dimensions...

Unsolved problem in mathematics: Can every simplex be dissected into a bounded number of orthoschemes? (more unsolved problems in mathematics) In geometry...

that can be defined from any metric space M and distance δ by forming a simplex for every finite set of points that has diameter at most δ. That is, it...

"Distribution of irregular prime numbers". Journal für die Reine und Angewandte Mathematik. 1976 (282): 126–130. doi:10.1515/crll.1976.282.126. MR 0399014. S2CID 201061944...

its predecessor, enclosing more content within the same radius. The 4-simplex (5-cell) has the smallest content, and the 120-cell has the largest. The...

of k-dimensional stacked polytopes, polytopes formed by starting from a simplex and then repeatedly gluing simplices onto the faces of the polytope, are...

factorization method for solving systems of linear equations, and the simplex method of linear programming. In practice, finite precision is used and...

simplex are then tested, and typically there will be one additional face with an interior zero. The initial simplex is then replaced by the simplex which...

value are mapped by ƒ to the same point. In the case where K is a simplex, the two simplex faces formed by the maximum and minimum points of g must then be...