extremboy wrote:
除以零無意義是國中學的沒錯,但不是正確的,因為國中時代並沒有教授微積分的觀念,會變的無法解釋
故才會下無意義的結論
依照微基分的理論,除以零的數值,取其倒數有極限的概念存在,故並不是無意義
請參閱維基百科:
http://en.wikipedia.org/wiki/%C3%B70#In_calculus
limit 就 limit 還說啥倒數?
微分的定義就是由limit得來的
你有看過你自己給的 wiki link嘛?
真的有看懂他在寫什麼嘛?
還是你學的微積分只有正數沒有負數?
"which would lead to the result +∞ = −∞, inconsistent with standard definitions of limit in the extended real line. The only workable extension is introducing an unsigned infinity, discussed below."
"These and other similar facts show that the expression 0/0 cannot be well-defined as a limit."
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