naimad: I'm doing this group for problem set 6

aileen	    12
akasha	    12.5
asundqui    13 NO EXE
awchau	    11.5 NO RAYTRACE
ayyang	    11.5
badger	    5
bdunn	    12
benchun	    13
benres	    4.5
brianlin    14
brians	    0 NO FILES
bwallis	    9
cda	    4
charlesl    0 NO TURNIN
chungfat    9
cjcheng	    15
ctalbott    13.5
cuijian	    0 NO TURNIN
cyoon	    6
davidz	    15
dchen	    10
delfin	    8.5
dewb	    8.5
dmaze	    12.5
draco	    14
dsnow	    10.5
emarcus	    0 NO TURNIN
emliu	    10.5
fdabek	    12
flaspa	    11
franco	    11
gozar	    8

(LdirWS-viewdWS).(hit.surfnWS)
viewdWS.((2*(hit.surfnWS).LdirWS)*(hit.surfnWS)) - lDirWS