How can I code diagonal matrix

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DongShin Yang
DongShin Yang 2015-6-17
编辑： Walter Roberson 2015-6-18
Wm is an N0tilda x N0tilda diagonal matrix
---Matlab code---
Wm = zeros(N0tilda,N0tilda);
----------------------------
given by
Wm = diag(W_{n0}^{-m * 0},W_{n0}^{-m * 1}, ..., W_{n0}^{-m * (N0tilda -1})
I don't make given by Wm

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回答（2 个）

Walter Roberson
Walter Roberson 2015-6-17
Wm = diag( [ W_{n0}^{-m * 0},W_{n0}^{-m * 1}, ..., W_{n0}^{-m * (N0tilda -1} ] )
  1 个评论
DongShin Yang
DongShin Yang 2015-6-17
编辑：Walter Roberson 2015-6-18
I found code of my answers.
Wm = zeros(N0tilda,N0tilda);
N0tilda = 0:N0tilda-1;
WN0 = exp(-i*2*pi/N0);
Wm = diag(WN0.^N0tilda);

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DongShin Yang
DongShin Yang 2015-6-17
编辑：Walter Roberson 2015-6-18
Wm = zeros(N0tilda,N0tilda);
N0tilda = 0:N0tilda-1;
WN0 = exp(-i*2*pi/N0);
Wm = diag(WN0.^N0tilda);

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