WEuclidean groupWAxes conventionsWCubic harmonicWDihedral groupWEstermann measureWEuler anglesWEuler's rotation theoremWFrieze groupWGlide reflectionWKovner–Besicovitch measureWOrthogonal groupWPoint groupWPoint groups in two dimensionsWPoint reflectionWProcrustes analysisWReflection (mathematics)WReflection symmetryWRotation (mathematics)WRotation around a fixed axisWTranslation (geometry)WWallpaper group