“…For any affine mapping φ ∈ Aff(N, M ), an analogous representation is valid when the affine coordinates are fixed (i.e., origins of the reference frames and the linear bases) [7,10,19,20,[23][24][25][26][27][29][30][31][32][33][34][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][55][56][57][58]60]. Let us also quote the following 'representation' property of the operation L:…”