Which of the following is known as Hadamard matrix?
Posted: Thu Jul 14, 2022 9:41 am
a) \(\begin{bmatrix}1 & 0 & 1 & 0\\ 0 & 1 & 0 & 1\\ 1 & 0 & 1 & 0\\ 0 & 1 & 0 & 1\end{bmatrix} \)
b) \(\begin{bmatrix}1 & -1 & 1 & -1\\ 1 & -1 & 1 & -1\\ 1 & -1 & 1 & -1\\ 1 & -1 & 1 & -1 \end{bmatrix} \)
c) \(\begin{bmatrix}1 & 1 & 1 & 1\\ 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 1\\ 1 & 1 & 1 & 1 \end{bmatrix} \)
d) \(\begin{bmatrix}0 & 0 & 0 & 0\\ 0 & 1 & 1 & 0 \\ 0 & 1 & 1 & 0\\ 0 & 0 & 0 & 0 \end{bmatrix} \)
b) \(\begin{bmatrix}1 & -1 & 1 & -1\\ 1 & -1 & 1 & -1\\ 1 & -1 & 1 & -1\\ 1 & -1 & 1 & -1 \end{bmatrix} \)
c) \(\begin{bmatrix}1 & 1 & 1 & 1\\ 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 1\\ 1 & 1 & 1 & 1 \end{bmatrix} \)
d) \(\begin{bmatrix}0 & 0 & 0 & 0\\ 0 & 1 & 1 & 0 \\ 0 & 1 & 1 & 0\\ 0 & 0 & 0 & 0 \end{bmatrix} \)