matrix vector multiplication complex number
显示 更早的评论
Hi,
A complex matrix - vector mutiplication yields to a wrong result.
Heer is the code :
M = [ 1 complex(1,1) ; complex(0,-1) 1 ; 2 0; -1 3]
b = [ 2 complex(1,-1)]';
y=M*b
The outcome obtaind manually is : [ 4 1-3*i 4 1-3*i]
The matlab result (which is wrong) : [ 2+2*i 1-1*i 4 1+3*i]
May I ask you some hints please ?
Regards
Sylvain
采纳的回答
Torsten
2019-6-13
1 个投票
b = [ 2 ,complex(1,-1)].'
instead of
b = [ 2 ,complex(1,-1)]'
3 个评论
Sylvain Rousseau
2019-6-13
编辑：Sylvain Rousseau
2019-6-13
Torsten
2019-6-13
b = [ 2 ,complex(1,-1)].'
means that you take the transpose of the vector which gives
b = [2; complex(1,-1)]
b = [ 2 ,complex(1,-1)]'
means that you take the conjugate transpose of the vector which gives
b = [2; complex(1,1)]
Sylvain Rousseau
2019-6-13
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
