list of trigonometric identities euler's identity vector calculus identities commutator tangent half-angle formula differentiation rules identity (mathematics) green's identities newton's identities jacobi identity cis (mathematics) polarization identity vector algebra relations brahmagupta– fibonacci identity jacobi– anger expansion euler's four-square identity rogers– ramanujan identities list of mathematical identities jacobi triple product fierz identity rogers– ramanujan continued fraction brahmagupta's identity weitzenböck identity dixon's identity lagrange's identity (boundary value problem) weyl expansion pfister's sixteen-square identity
Mathematics_Mathematical theorems