1. The problem statement, all variables and given/known data Hi, I have a really short (and dumb) question. In one of my homework problems they talk about a vector w, such that w=e1+e2+e3. (In R3.) 3. The attempt at a solution I guess they mean that: e1=(1,0,0), e2=(0,1,0) and e3=(0,0,1). So w=(1,1,1). Right?