[理工] [线代]trace证明

楼主: howard396501 (AlexHoward)   2015-07-08 23:55:33
如图
http://i.imgur.com/gy71Lyn.jpg
请问(A^T)ik(A)ki为什么会等于a^2 ki?
谢谢各位大神了~~~~~
作者: goldflower (金色小黄花)   2015-07-09 00:03:00
因为(A转置)ik = (A)ki
楼主: howard396501 (AlexHoward)   2015-07-09 08:06:00
了解,茅塞顿开!谢谢您!!

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