EntityQ426221· pop 31· linked from 224 articlesreflectionSign in to savemapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed pointsConnectionsCartesian coordinate systemEntityEuclidean spaceEntityorthogonal matrixEntitymathematicsEntityInternational Standard Book NumberEntitycircleEntityfunctionEntitymatrixEntitygroupEntityrotationEntityscalar productEntitydeterminantEntityperpendicularityEntityeigenvectors and eigenvaluesEntitytwo-dimensional spaceEntityKronecker deltaEntityidentity matrixEntityopposite numberEntitybinary relationEntityorthogonalityEntityCategoriesFunctions and mappingsLinear operatorsReflection (mathematics)