Computational Method for Engineering Applications

$2^{ed}$ exam

Q$1$: Put $(v)$ for the correct sentence and put $(x)$ for the incorrect sentence

Command Window Use the Command Window to enter variables and run functions and M$-$files. $(,$

Workspace consists of the set of variables $($named arrays$)$ built up during a MATLAB session and stored in memory. $($

clc Command Clears the Command window and homes the cursor $(,$

clear Command: Clears the Command window and homes the cursor $(x)$

A semicolon $"$; $"$ at the end of a MATLAB statement suppresses printing of results. $($V$)$

Lookfor Command provides help by searching through all the first lines of MATLAB help topics. $($

To write a matrix $A$ in MATLAB write like $A=[123$;$456$;$789].(,,$

In matrix, Use a comma $(,)$ to indicate the end of each row. $(x,$

Q$2$: Choose the correct answer

$1.$

$x=[123$;$456],{\displaystyle \underset{?}{\overset{?}{}}}(x)$

A$.6$

B$.579$

C$.975$

D$.859$

$2.$

$15$

$x=[123$;$456],{\displaystyle \underset{?}{\overset{?}{}}}(x,2)$

A$.6$

B$.5$

C$.6$

D$.859$

$3.$

$15$

$15$

$14$

A$.12$

E$.122$

F$.21$

G$.210$