Question

For this In-Class Exercise, you are asked to build a MATLAB code that makes a few assignment statements and a logical test with random numbers. To answer this ICE, you will need to upload a screenshot of your successful run showing ALL of the outputs. Remember to use good programing skills for the code. For your outputs:

If your output for a step below is a single value, use a command similar to:fprintf(‘Question 5 answer: %4.3f \n,A) or fprintf(‘Question 5 answer: %d \n,A)

If your answer is a vector or an array, use a normal print by leaving off the semicolon like:A = 1:3 Questions: PLEASE ONLY ANSWER 5-8 in MATLAB CODE FORMAT

1. Assign a random floating point number between 0 (inclusive) and 1 (exclusive) to the variable A.

2. Assign a random floating point number between 0 (inclusive) and 5 (exclusive) to the variable B.

3. Assign a random integer between 1 (inclusive) and 5 (inclusive) to the variable C.

4. Assign a random integer between 11 (inclusive) and 50 (inclusive) to the variable D.

5. Assign a random floating point number to EACH element in a 3x3 array between 0 (inclusive) and 1 (exclusive) to the variable E.

6. Assign a random integer to EACH element in a 3x3 array between 0 (inclusive) and 10 (inclusive) to the variable F. [TRICKY QUESTION]

7. Assign a random floating point number between 0 (inclusive) and 1 (exclusive) to the variable G THEN test ‘G’ to see if it is greater than 0.6. IF G is great than .6 display “G is greater than 0.6” and if G is less than 0.6 display “G is less than 0.6” and if G equals 0.6 display “G equals 0.6”. [HINT: Remember the “disp” command??]

8.The "rand" function uses what type of distribution?

Answer 1

Question 1:

A = rand();

fprintf( 'Question 1 answer : %f ',A);

%default range of rand( ) is o and 1

Question 2 :

x = 0 ; y= 5;

B = (y - x ) * rand ( ) + a

fprintf( 'Question 2 answer : %f ',B);

%To change the range of the distribution to a new range, (x, y), multiply each value by the width of the new range, (y – x) and then shift every value by a.

Question 3:

C = randi ( [1 5],1,1)

fprintf( ' Question 3 answer : %d ',C);

%syntax, randi([imin imax],m,n)

Question 4 :

D = randi ( [11 50] , 1,1);

fprintf('Question 4 answer : %d',D);

Question 5 to 7

1 question 5 2 default range of rand is (0,1) rand (3) 3Е 4 disp (' Question 5 ,E : '); 5 disp (E) 6 %question 6 7 range is 0 to 10 and size 3*3 8 F randi ( [0 10],3,3); 9 disp (' Questin 6 ,F : '); 10 disp (F) 11 12 question 7 rand ( 14 disp('Question 7 '); 15 checking conditions 16 Eif (G>0.6) 13 G disp('G is greater than 0.6') 17 18 elseif (G<0.6) disp ('G is less than 0.6') 19 20 else disp ('G equals 0.6'); 21 22 end 23 24

OUTPUT

Question 5 ,E : 0.926747 0.678660 0.105744 0.070970 0.479479 0.314386 0.735128 0.649900 0.919798 Questin 6 2 6 3 5 1 6 10 3 Question 7 G is less than 0.6

RAW CODE :

%question 5
%default range of rand is (0,1)
E = rand(3);
disp(' Question 5 ,E : ');
disp(E)
%question 6
%range is 0 to 10 and size 3*3
F = randi([0 10],3,3);
disp(' Questin 6 ,F : ');
disp(F)

%question 7
G = rand();
disp('Question 7 : ');
%checking conditions
if(G>0.6)
disp('G is greater than 0.6');
elseif(G<0.6)
disp('G is less than 0.6');
else
disp('G equals 0.6');
end

Question 8 :

rand returns normalized values (between 0 and 1) that are drawn from a uniform distribution.

Use :

help('rand')