its a G powerchord...
Gmaj7 without the 3rd

whoever said A minor is retarded.
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'tis a g maj7
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Quote by frigginjerk

if this is written high to low, then the notes are C, A and E, which would form an A minor chord.

if it's written low to high, then the notes are C, D and F#

somebody tell me how it's a G...
Because the notes are G, D and F#
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Because the notes are G, D and F#

if you read it high to low (muting the two high strings and the low E string), they're A, C and E... and i did miscalculate on the low to high, hence why i edited my post.

anyways, i read it high to low, and it looked like a partial A minor barre chord containing a root, fifth and minor third.
Quote by frigginjerk
there we go then

cheerfully withdrawn.

Yes, convention is low to high, so that's how you should read it from now on. xx577x is just:
I wouldn't notate that based off G at all, actually; G D F# would be a Gmaj7 but with no third, which I don't like. I think it would be more sensible to call it a D/G, because the third of the D chord is there, suggesting that tonality. Of course it depends largely on the context, but I wouldn't see that based off of G as it stands.

TS: Go with D/G.