= Integral Geometry = Geometry expressed in [[Calculus/Integral|integrals]]. <> ---- == Area == Generically, the area of a region is calculated like: {{attachment:area.svg}} While this exact formulation works as-is for a rectangular region described by ''[a,b] x [c,d]'', this also demonstrates how the area of any region of integration can be calculated. ---- CategoryRicottone