Orthant 1970-01-01
Orthogonal Procrustes problem 1970-01-01
Orthogonal basis 1970-01-01
Orthogonal complement 1970-01-01
Orthogonal transformation 1970-01-01
Orthogonalization 1970-01-01
Orthographic projection 1970-01-01
Orthonormal basis 1970-01-01
Orthonormality 1970-01-01
Outline of linear algebra 1970-01-01
Overcompleteness 1970-01-01
Overdetermined system 1970-01-01
Pairing 1970-01-01
Partial trace 1970-01-01
Peetre's inequality 1970-01-01
Pohlke's theorem 1970-01-01
Productive matrix 1970-01-01
Projection-valued measure 1970-01-01
Projection (linear algebra) 1970-01-01
Projectivization 1970-01-01