MATLAB while if loop 1. What does the find command do? a. Returns the position of each nonzero element in an array.' b. Returns a vector containing the linear indices of each nonzero element in an...

MATLAB while if loop 1. What does the find command do? a. Returns the position of each nonzero element in an array.' b. Returns a vector containing the linear indices of each nonzero element in an array. c. Returns each nonzero element in an array d. Finds the elements that meet a given criteria and returns those elements directly 2. Given the following code: a=0; while(a a = a +3 end - How many times does the while loop execute? - What is the final value of a? 3. A midpoint break loop is the best loop to repeat a set of instructions a known number of times whereas a while loop can be used if the number of iterations is unknown. (True or False) 4. If you accidentally create a loop that just keeps running infinitely on a PC and you want to stop it, you should: a. Make sure the active window is the command window and exit the calculation manually with Ctrl-D b. Do nothing. Just wait it out! c. Make sure the active window is the command window and exit the calculation manually with Ctrl-c d. Make sure the active window is the command window and exit the calculation manually with Ctrl-C e. Make sure the active window is the editor window and exit the calculation manually with Ctrl-C. 5. Given the following code: x=input('Enter a value of x greater than 0: '); if x>0 y=log(x) else beep fprintf('The input to the log function must be positive \n') end %if If the user then enters [0:0.5:2], does line 3 execute? (True or False) 6. In general loops are best used with: a. scalars b. two dimensional matrices c. row vectors d. column vectors e. character arrays f. cell arrays 7. In general, using a for loop (or a while loop) is less efficient in MATLAB than vectorizing the code. (True or False)