# Is (0,0,0) an undefined vector?

I'm not sure what to make of the direction of a vector with components (0,0,0). Is it an undefined vector?

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Wikipedia: en.wikipedia.org/wiki/Null_vector –  Qmechanic Nov 11 '11 at 22:01

Physically, if $(0, 0, 0)$ is the position vector of some particle, then that just means it is located at the origin.