Test 1 Matlab

What is the error in the following MATLAB script code? %Matlab x = 5; y = 0; z = x / y;

• A) Division by zero error

• B) Syntax error

• C) Variable naming error

• D) Mathematical error

What correction should be made to fix the error in the following MATLAB script code? a = input('Enter the value of a: '); b = input('Enter the value of b: '); result = a / b; disp(['The result of dividing a by b is: ', num2str(result)]);

• A) Change the division operator to multiplication

• B) Swap the positions of "a" and "b"

• C) Add error handling for division by zero

• D) Change the disp function to fprintf

What error is present in the following MATLAB script code? x = [1, 2, 3]; y = 5; z = x * y;

• A) Indexing error

• B) Type mismatch error

• C) Matrix multiplication error

• D) Syntax error

What change should be made to correct the error in the following MATLAB script code? a = 10; b = 2; result = a ^ b; disp(['The result is: ', result]);

• A) Change the ^ operator to /

• B) Convert "result" to a string using num2str

• C) Swap the positions of "a" and "b"

• D) Remove the disp function

What error is present in the following MATLAB script code? x = 5; y = 3; result = x * y; fprintf('The result is: %d\n', result);

• A) Syntax error in fprintf function

• B) Type mismatch error in fprintf function

• C) Incorrect format specifier in fprintf function

• D) No error

What change should be made to fix the error in the following MATLAB script code? x = linspace(0, 10, 100); y = 2 * x + 1; plot(x, y); xlabel('x'); ylabel('y'); title('Linear Function');

• A) Change the plot function to scatter

• B) Swap the positions of "x" and "y" in the plot function

• C) Add quotation marks around 'x' and 'y' in xlabel and ylabel functions

• D) No change is needed, the code is correct

What error is present in the following MATLAB script code? radius = 5; area = pi * r^2;

• A) Syntax error in the calculation of area

• B) Incorrect variable name for radius

• C) Missing parentheses in the calculation of area

• D) No error, the code is correct

What is the purpose of the following MATLAB script code in engineering calculations? t = linspace(0, 10, 1000); y = sin(2 * pi * t); plot(t, y); xlabel('Time (s)'); ylabel('Amplitude'); title('Sinusoidal Waveform');

• A) To calculate the Fourier transform of a signal

• B) To visualize a sinusoidal waveform over time

• C) To calculate the area under a curve

• D) To perform data filtering

What change should be made to fix the error in the following MATLAB script code? A = [1, 2; 3, 4]; b = [5; 6]; x = inv(A) * b;

• A) Change the multiplication operator to division

• B) Swap the positions of "A" and "b"

• C) Use the backslash operator to solve the system of linear equations

• D) No change is needed, the code is correct

How often will it beep?

% MATLAB Code Snippet

for count =1:5

    if mod(count,2)

        beep'

    end

end

• a)3

• b)1

• c)2

• d)4