[問卦] 數學上的e到底是一個怎麼樣的存在消失
從微積分學到的e
印象中是用一些指數的概念推出來的
我忘記他的意義 只記得好像等於2.多
然後配著ln當成常數的概念在學
之後不論是在工數還是各種力學都可以看到e或ln的存在,但是我也只當公式背
最近在看簡單版有關弦理論的書
面也用到一堆e和ln……
e大概是怎樣的存在
為什麼被這麼泛用
有八卦嗎?
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