how can do this in matlab

x is a matrice

(l , k )=argmax (X .* X*)

*=conjugate

how can i do the argmax ?

[James Tursa]

See the 2nd output of the max( ) function.

Answer 1

[Athanasios Paraskevopoulos]

% Assuming X is your matrix
X = ...; % Your matrix here

% Compute the element-wise product of X and its conjugate
productMatrix = X .* conj(X);

% Find the linear index of the maximum value in the product matrix
[~, linearIndex] = max(productMatrix(:));

% Convert the linear index to row and column indices
[l, k] = ind2sub(size(X), linearIndex);