What is the projection of (32i38j12k) onto (18i30j12k)?

1 Answer
Feb 14, 2016

c=<24,47i,40,79j,16,32k>

Explanation:

a=<32i,38j,12k>
b=<18i,30j,12k>
ab=1832+3830+1212=
ab=576+1140+144=1860
|b|=182+302+122
|b|=324+900+144
|b|=1368
c=ab|b||b|b
c=186013681368<18i,30j,12k>
c=18601368<18i,30j,12k>
c=<186018i1368,186030j1368,186012k1368>
c=<24,47i,40,79j,16,32k>