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I inadvertently up-voted the wrong answer (it happened because of scrolling). The answer now had a total of 1 vote (mine). To cancel my upvote, I clicked down-vote. Unexpectedly the question now had a score of minus one. I don't want this either because the answer isn't so bad that I want to penalise it.

This is very peculiar maths.

1 - 1 = -1

and

-1 + 1 = 1

Why can't I simply do what I want to do and cancel my vote?

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  • $\begingroup$ It is more likely that someone else downvoted the answer at the same time that you retracted your upvote. It doesn't show timing but you can look at the total number of up and down votes (with enough rep, which you have) by clicking the number of votes. $\endgroup$ – Cyn Jan 21 at 6:50
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To retract an upvote or a downvote, just click within 5 minutes from the previous vote the same vote button. This will retract the vote.

Past the 5 minutes the vote is locked and can be changed only upon edit of the voted post.

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  • $\begingroup$ Ah - I see, a non-intuitive interface! 1 + 1 = 0 ....Thanks, now I know. $\endgroup$ – chasly from UK Jan 18 at 13:56
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    $\begingroup$ @chaslyfromUK more like an on-off switch on the vote, I think. $\endgroup$ – Renan Jan 18 at 15:39
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    $\begingroup$ @Renan Yes. Undoing the vote doesn't register an opposite vote; it undoes the vote (and reverses the reputation gain/cost for both voter and votee). $\endgroup$ – a CVn Jan 18 at 17:51

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