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實數 有理數:自然數:0與正數:分數(真分數假分數)(無限循環小數),整數. 負數. 無理數:無限不循環小數. 虛數 公因數公倍數,素數(質數),合數…… 對數,倒數…… 那個,函數算不算?三角函數那些…… 能想到的就這些了,
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