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[函数] 同一函数

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reny posted 2014-1-6 14:50 |Read mode
$f(x)=x^2$和$f(x+1)=(x+1)^2$究竟是不是同一函数?我怎么觉得是呢

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kuing posted 2014-1-6 15:14
你只要知道对应法则 $f$ 是相同的就行了,争议的只是理解问题(也就是说问题中的“同一函数”到底是指两个 $f$ 还是指等号右边两个式子),纠结这个没什么意思……

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isee posted 2014-1-6 16:54
没这么出题的吧?

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