A joke heard recently.
π (Pi), an irrational number (數學中的圓周率,是個無理數。); i (√-1), an
imaginative number (根號負一,是個虛數。)
Conversation between Pi and i: (兩者的對話:)
i said to Pi, "Can you be rational?" ( i 對Pi 說:你可不可以理性一點呢?)
Pi retorted, "Can you be real?" (Pi 回嘴說:那你可不可以實在一點呢?)
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