👉 In mathematics, a subtriangular number is a positive integer that can be expressed as the sum of two triangular numbers. These numbers are also called triangular subtrahends or triangular subtriangular numbers. For example: - 2 is a subtriangular number because it equals the sum of two triangular numbers: 2 = 1 + 1. - 3 is not a subtriangular number, as it does not equal the sum of two triangular numbers. Subtriangularity
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What is the definition of Subtriangularity? 🙋
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What is the definition of Subtriangular? 🙋
👉 Subtriangular is a term that refers to a type of shape in Euclidean geometry, particularly in triangle analysis. It is named after the Greek letter delta (Δ), which represents "triangle" and "subtriangles." A subtriangular region is any region within a polygon with at least two triangles sharing an edge.
