驗證網址www.jamestanton.com安全性

Deriving Euler’s Formula: e^ix = cos(x) + i sin(x) (VIDEO!) : Thinking Mathematics!

Deriving Euler’s Formula: e^ix = cos(x) + i sin(x) (VIDEO!) Perhaps the most surprising and beautiful result in all of mathematics, Euler’s formula, e^ix = cos(x) + i sin(x), turns the theory of trigonometry into a simple study of exponents. (And put in x...

網址安全性掃描由 google 提供


剃毛後,就站立行走,一副要跟你乾架的態勢近日,有網友上傳自家狗​​狗照片,稱自從給它剃了毛後,就一直站立行走,還挺兇,問題是,它是公的!該網友緊急求助,這種逆天行為怎麼破? !  你不羞嗎?  穿衣服也沒用啊 主人表示很害怕 怎麼樣都不管用 站立行走的狗狗 站立行走的狗狗 剃毛...

全文閱讀