EntityQ1307800· pop 19· linked from 208 articlesunit sphereSign in to saveset of points in 3D space of distance 1 from a fixed central pointConnectionsSpringer Science+Business MediaEntitymathematicsEntityInternational Standard Book NumberEntitytrigonometryEntitymathematical analysisEntitysphereEntitydistanceEntityradiusEntitydigital object identifierEntitydimensionEntityplaneEntityradianEntitythree-dimensional spaceEntitysteradianEntityinequalityEntitygamma functionEntityEuclidean spaceEntitymetric spaceEntityHilbert spaceEntityunit circleEntityCategories1 (number)Functional analysisSpheres