Suppose you have defined $x = [ 1,2,3 ] \text { and } y = [ 2,4,6 ]$ in the Command Window. Determine the result of the following MATLAB operation: $ \mathbf { X } \cdot { } ^ { * } \mathbf { y }$
A) ans $ =369 $
B)ans $ =2 \quad 8 \quad 18 $
C)ans $ =\begin{array}{llllll}1 & 2 & 3 & 2 & 4 & 6\end{array} $
D)ans $ =6 \quad 12 $

Question

Suppose you have defined $x = [ 1,2,3 ] \text { and } y = [ 2,4,6 ]$ in the Command Window. Determine the result of the following MATLAB operation: $> > \mathbf { X } \cdot { } ^ { * } \mathbf { y }$  
A) ans $ =369 $
B)ans $ =2 \quad 8 \quad 18 $
C)ans $ =\begin{array}{llllll}1 & 2 & 3 & 2 & 4 & 6\end{array} $
D)ans $ =6 \quad 12 $

Quizplus · Accepted Answer

The operation `.*` in MATLAB performs element-wise multiplication. Thus, $x \cdot^* y$ results in $[1*2, 2*4, 3*6] = [2, 8, 18]$.

Suppose You Have Defined x=[1,2,3] and y=[2,4,6]x = [ 1,2,3 ] \text { and } y = [ 2,4,6 ]x=[1,2,3] and y=[2,4,6]

Suppose You Have Defined $x = [ 1,2,3 ] \text { and } y = [ 2,4,6 ]$