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Linear Algebra

  • Thread starter Computnik
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  • #1
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Homework Statement


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.)

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?
 

Answers and Replies

  • #2
Simon Bridge
Science Advisor
Homework Helper
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Sort of. the ei are usually basis vectors, but they do not have to be Cartesian basis vectors.
Any three orthogonal vectors will do - helps if they are orthonormal.
 
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