Can anybody tell me what \(\overline{xyz}\) means? I came across this symbol in the sum in the following link: https://brilliant.org/problems/the-lightning-scar/?ref_id=1156763

Thanking in advance! :-)

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TopNewestIt is the concatenation of the values of x,y and z respectively. For example of x=1,y=2 and z=3 then \(\overline{xyz}=123\)

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Thank you! :-)

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