Time Invariant
2011-10-17 3:40 pm
圖片參考：http://imgcld.yimg.com/8/n/HA00799676/o/701110170013713873478600.jpg
My question is, How delta(n) + delta (-n) = 2*delta(n)?
Those plots are drew by me, If I added those two plots delta(n) + delta (-n), it doesn't equal 2*delta(n).
But the book states delta(n) + delta (-n) = 2*delta(n).
So please explain to me which part I did wrong or the whole concept behind this. Thanks
回答 (1)
2011-10-18 4:53 am
收錄日期: 2021-04-24 10:08:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111017000051KK00137