MAKING VECTORS$/$MATRICES

MANUAL ENTRY AND MANIPULATION

Create the matrices A and $B$ in Matlab, and then build the described matrices using matlab indexing

A=[4862-35-191216

126-2]

$1$

$-14$

$1$

$-14$

$2$

$B=\left[\begin{array}{ccccccccccccc}4& 5& 8& 9& 7& 10& 11& 13& 16& 17& 15& 18& 19\end{array}\right]$

$14$

$12$

$6$

a$)$ Save the element in the second row and third column of $A$ on $HW\{1\}$

b$)$ Save a matrix containing the second and third columns of the matrix B on $HW\{2\}$

c$)$ Save a matrix containing the third and fourth rows of the matrix $A$ on $HW\{3\}$

d$)$ Save a matrix containing elements that are in both

second through fourth rows of $A$

first through third columns of $A$

on HW $\{4\}.$ Your answer should be a single $33$ matrix

e$)$ Replace the $3^{rd}$ and $4^{th}$ rows of A with the $3^{rd}$ and $4^{th}$ rows of $B$ using indexing. Save this new $A$ on $HW\{5\}.$