Shuhao Cao

Caveat lector.

If you have some time to spare, please consider visiting the Mathematics StackExchange chatroom: Crusade of Answers. We mostly post community-wiki answers to old unanswered questions.

If you find that your more than one year old answer just got a fresh upvote, it is possibly that the crusaders are using this data explorer query finding your answer deserves an upvote.

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