I meant something like gs_d = gs_n + gs_p. (The various gs_x I used are not standard terminology, BTW. Also BTW, you can get your _ to show up by putting \ before them.)
I meant something like gs_d = gs_n + gs_p. (The various gs_x I used are not standard terminology, BTW. Also BTW, you can get your _ to show up by putting \ before them.)