mathematical magic
数学魔术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
People started to do some mathematical analysis on the structure and the character of magic square from seventeen century.
从十七世纪开始，人们对幻方的构造与性质展开比较严肃的数学思考。
youdao
If you still think there is some mathematical magic in rebalancing, then ask yourself why no one is creating arbitrage profits out of this phenomenon.
FORBES: Dumb Idea: Rebalancing Boosts Returns
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