MATLAB Quiz

MATLAB stands for?

• matrix laboratory

• math library

• matric library

• matrix library

Which command is used to clear a command window?

• clear

• close all

• clc

• clear all

Command used to display the value of variable x.

• displayx

• disp(x)

• disp x

• vardisp(‘x’)

What would be the output of the following code (in editor window)? A = [1 0 2] ; b = [3 0 7] ; c=a.*b;

• [2 0 21]

• [3 0 14]

• [14 0 3]

• [7 0 3]

What is the nature of the arrangement of the coefficients to store the following expression in MATLAB? y= 3x5 + x2 + 6

• y=[3,0,0,1,0,6]

• y=[3,1,6]

• y=[3;0;0;1;0;6]

• y=[6,0,1,0,0,3]

How can the formulation of polynomial be done from its roots?

• poly(r), r is a row vector, containing the roots of the polynomial

• poly([roots as a coloumn vector])

• poly([roots as a row vector])

• poly([roots in descending order as a coloumn vector])

What is MATLAB primarily used for?

• To create web applications

• To perform numerical computing, data analysis, and visualization

• To manage databases

• To develop mobile applications

Which of the following is NOT a key feature of MATLAB?

• Matrix operations

• Graphical data visualization

• Developing iOS apps

• Built-in toolboxes

What does the "clear" command do in MATLAB?

• Removes specific variables

• Clears all variables from memory

• Clears the Command Window

• Clears specific variables only

Which symbol is used for comments in MATLAB?

• #

• %

• //

• !