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希臘字母表,請參看下圖,可以找本數學工具書
第一個是集合,第二個不認識,第三個是求和符號,四五分別是並集和交集,六個同樣沒有見過,七個貌似是小節的意思,八個是積分符號,我剛高考完,感覺第2,6個真的沒有見過.
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