Questions on Loops, Statements and Functions

11 Questions, 30 Minutes

Questions 1-8

What are the type and value of the variable R, after executing the given commands.

b = 1; c = 0; d = 17; R = (b | c) & ~d;

u = true; v = -17; R = u & v;

v1 = 0; v2 = false; ww = 6; R = v1 & (v2|ww);

r1 = pi/3; r2 = double(false); R = r2/r1;

mass = 11; acc = -2; R = logical(mass*acc);

X = 1; y = 0; z = 2; R = X & ~y & z;

u = true; v = -17; w = 0; R = u & v & w;

r1 = pi/3; r2 = false; R = r2/r1;

Questions 9-11

Which numbers are displayed when the following MATLAB script is executed?

                k = 1;
                for j = 1:2:5
                disp(k*2*j^2);
                k = k + 1;
                end
                

10)

How many times is the body of the while-loop executed in the script below?

                L = 3;
                count = 1;
                myflag = true;
                while myflag
                if count > L
                myflag = false;
                end
                count = count + 1
                end
                

11)

What is the value of the variable y after executing the following MATLAB script?

                y = myfunc(12,8)

                function c = myfunc(a, y)
                y = 17;
                c = a - y;
                end
                

Tip: Remember MATLAB's logical operations treat any non-zero value as true, and zero as false. Pay attention to operator precedence and data types!

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