Please help. I don't think I understand the syntax.
The question is as follows:
Please write down the 3x3 matrices.
a) A=(min(i,j))
b) B=((-1)^(i+j))
c) C=(i/j)
d) D=(i^(j-1))
Thank you.
i,j denotes the entry in the ith row and jth column of the matrix. Let's do 1 for an example:
$\displaystyle
[A]_{i,j}=\min(i,j)\Rightarrow A=\begin{pmatrix}
\min(1,1)&\min(1,2)&\min(1,3)\\
\min(2,1)&\min(2,2)&\min(2,3)\\
\min(3,1)&\min(3,2)&\min(3,3)\\
\end{pmatrix}=\begin{pmatrix}
1&1&1\\
1&2&2\\
1&2&3\\
\end{pmatrix}
$
Can you do the others now?