(set theory, of two sets A and B) The set that contains exactly those elements belonging to A but not to B; the relative complement of B in A.

(calculus, not comparable) Having a derivative, said of a function whose domain and codomain are manifolds.

simple past tense and past participle of difference

present participle of difference

(mathematics) The constant added to each element of an arithmetic progression to obtain the next.

plural of partial differential equation

plural of differential equation

(geometry, mathematical analysis) The study of geometry, especially geometric structures on differentiable manifolds, using techniques from calculus, linear algebra and multilinear algebra.

plural of ordinary differential equation

(mathematics) Field dealing with differentiable functions on differentiable manifolds.