betterexplained

https://betterexplained.com/articles/an-intuitive-guide-to-exponential-functions-e/

https://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/

posted @ 2017-07-29 11:38 yc5518 阅读(134) 评论(0) 收藏举报