The term "symplectic" is a calque of "complex" introduced by Hermann Weyl in 1939. In mathematics it may refer to: Symplectic Clifford algebra, see Weyl algebra Symplectic geometry Symplectic group Symplectic integrator Symplectic manifold Symplectic matrix Symplectic representation Symplectic vector space It can also refer to: Symplectic bone, a bone found in fish skulls Symplectite, in reference to a mineral intergrowth texture See also Metaplectic group Symplectomorphism