👉 In mathematics, the term "curvature" is used to describe a quantity that represents the angle between two curves or surfaces. It is often denoted by the symbol "κ" (Greek letter kappa) and is defined as: κ = ∫∫ R y(x,y) dx dy Where: - R is the region of integration, - y(x,y) is the function representing the surface or curve, - x and y are the coordinates in the Cartesian coordinate system. The curvature κ
