regular tetrahedronregular transformationregular valueregularityregularizationregularizeregularlyregulateregulated planeregulationregulatorreheatingreimman stieltjes integralrejectreject gaterejectable quality levelrejecting staterejectionrejection numberrejection of hypothesisrejection raterejection regionrelabelrelabelingrelaterelatedrelated anglerelated angle of an anglerelated raterelated ratesrelated variablesrelationrelation companionrelation grouprelation of equivalence of eventsrelations of eventsrelationshiprelationship torelationship to cyclingrelationship to extreme pointsrelationshipsrelationships of matrixrelationships of vectorrelationships primal vs dual problemsrelativerelative closed setrelative complementrelative complement of two setsrelative consistencyrelative cumulative frequency