今日去左圖書館預約左
入面有冇得學wave既基本野?
john456 發表於 14-9-2010 20:50 http://www4.nakuz.com/bbs/images/common/back.gif
我答埋呢個算啦
呢本書既主指唔係集中係wave,唔會講wave既basic concept
其實wave只係好少既一部分黎-.-
我答埋呢個算啦
呢本書既主指唔係集中係wave,唔會講wave既basic concept
其實wave只係好少既一部分黎-.- ...
-終場ソ使者- 發表於 14-9-2010 20:54 http://www1.nakuz.com/bbs/images/common/back.gif
o....................................
但係wave
可能d科普書作者以為d人一定識
所以唔會特別講
學校又末教到
咁我咪想學下wave既野先
唉 無人討論下 虛數?
我覺得好神秘
虛數其實根本唔存在,係數學上既一個假設@@
虛數其實根本唔存在,係數學上既一個假設@@
-終場ソ使者- 發表於 14-9-2010 08:02 AM http://www.nakuz.com/bbs/images/common/back.gif
我覺得 好似以前咁 d人覺得開方2 都係唔存在,慢慢就存在左
同埋 數學家本身都唔承認 虛數 e家都承認左
可能過多200年 物理知識 又多d 咁虛數 就明洗
我覺得 好似以前咁 d人覺得開方2 都係唔存在,慢慢就存在左
同埋 數學家本身都唔承認 虛數 e家都承認左
可 ...
p445hkk20001 發表於 14-9-2010 22:05 http://www1.nakuz.com/bbs/images/common/back.gif
乜叫明洗- -
係wo
之前睇書見過有樣野叫虛數空間
又係乜野野泥
仲有咩虛數時間
For my own comprehension, "虛數時間" would never occur in the physics world.
For example, if you want accelerating a particle as speed of light(even faster than light), you will find that it must not happen because of the following mathematical expression, that
http://upload.wikimedia.org/math/a/d/e/adef9864e2e5af783c1a34dbbfaefa08.png (where http://upload.wikimedia.org/math/e/b/0/eb0b3c344785188dd653604826382950.png)
(I had commented in a certain post.)
There is an equation of relating time in special theory of relativity that
http://upload.wikimedia.org/math/5/3/f/53f04733d0dce0d0c76031fc170783b1.png,
you can imagine that v must not be equal or greater than c,
in equal case, t becomes infinity; while "虛數時間" will occur when v>c.
But, you know that there is no such a complex solution in physics, it's only foy mathematics, is a mathematical joke!!!
咩係v 咩係c