An upper triangular matrix has its only non-zero elements on or above the main diagonal, that is aij=0 if i>j Similarly, a lower triangular matrix has its non-zero elements on or below the diagonal, that is aij=0 if i<j
having three angles; forming or shaped like a triangle; "a triangular figure"; "a triangular pyrimid has a triangle for a base
A projectile, knife, preform or blade which has three sides or roughly has the shape of a triangle
Oblong or elongated, and having three lateral angles; as, a triangular seed, leaf, or stem
involving three parties or elements; "the triangular mother-father-child relationship"; "a trilateral agreement"; "a tripartite treaty"; "a tripartite division"; "a three-way playoff"
You can describe a relationship or situation as triangular if it involves three people or things. One particular triangular relationship became the model of Simone's first novel
Something that is triangular is in the shape of a triangle. cottages around a triangular green
having three angles; forming or shaped like a triangle; "a triangular figure"; "a triangular pyrimid has a triangle for a base"
(deltoid) With 3 sides of equal length A triangular leaf is attached to the stem at a point midway along one side