數(shù)列極限中的證明問(wèn)題!那個(gè)N是怎么回是?不是說(shuō)N必須為正整數(shù)嗎?而書上怎么在證明時(shí)寫到n＞(1-2ε)/4ε就說(shuō)N=[(1-2ε)/4ε] 即N為1-2ε/4ε的整數(shù)部分,但(1-2ε)/4ε的整數(shù)部分不一定為正數(shù)啊!真被搞糊涂了!請(qǐng)高人指

數(shù)列極限中的證明問(wèn)題!那個(gè)N是怎么回是?不是說(shuō)N必須為正整數(shù)嗎?而書上怎么在證明時(shí)寫到n＞(1-2ε)/4ε就說(shuō)N=[(1-2ε)/4ε] 即N為1-2ε/4ε的整數(shù)部分,但(1-2ε)/4ε的整數(shù)部分不一定為正數(shù)啊!真被搞糊涂了!請(qǐng)高人指點(diǎn)下!

數(shù)學(xué)人氣：438 ℃時(shí)間：2019-10-09 07:43:55

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