Re: [理工] 100 離散
: 請問s=(a d c) 怎麼變成s^2=(a c d)?
: 不太懂如何變化
: -----
: Sent from JPTT on my OPPO CPH1701.
a => d => c
d => c => a
c => a => d
結論
a => c
c => d
d => a
所以s^2=(a c d)
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