QUESTION 1

Given the following age= [15,17,25,55,76]

Use the find command to list the eligible ages (not the index number) for a standard driver's license. Eligible applicants are at least 18 years old but less than 70 years old.

age(find(age<70 & age>=18))

find(age>=18 & age<70)

find(age<70 & age>=18)

age(find(age>=18 && age<70))

age(find(age>=18 & age<70))

age(find(age>=18 I age<70))

QUESTION 2

What data type (class) is accepted by the fprintf function?

logical

single

char

none of these

double

QUESTION 3

Finish the code:

volume = input('Enter amount of gas: \n')

pick= menu('Measure the gasoline in liters or gallons?','gallons','liters')

switch

factor = 1; unit= 'gallons'

factor = 0.264172;

unit = liters'

%close the switch structure

rate=2.16; %dollars per unit

fprintf('That will be $ %5.2f for %5.1f %s \n', volume*factor*rate, volume, unit)

QUESTION 4

Use [x,y]=gtext(1) to pick many points off a graph with crosshairs and output the coordinates.

True False

QUESTION 5

Use fprintf to output to the command window AND to a text file called approx.txt.

A data dictionary and descriptive comments that show that you understand the program.

QUESTION 6

Create a midpoint break loop. Here's how to organize it.

%Use an infinite while command to begin

%Next, ask the user for input

%Test if the answer is not a positive number

%If their answer is not a positive number, inform them that it must be a positive number

%Otherwise, total up the cost

%Print out the total to a text file

%Break out of the infinite loop

%End the program

QUESTION 7

What is the result of the following logical operation and what class is the output? Given x=1:5; y=[-2, 0, 2, 4, 6]; z=8:-1:4;

(z>x I z>y) & x>y

ans=

1 1 1 0 0

ans would belong to the double class ans =
1
1
1
0
0

ans would belong to the double class ans =

1 1 1 0 0

ans would belong to the logical class

QUESTION 8

Turn in yourlastname4.m

Since we are studying repetitive structures this week, make sure you use a loop for this exercise! Please see and adhrere to the attached the directions for this exercise: Homework4 Halev.odf

QUESTION 9

Consider this bit of code.

1 C=[30,55,10];

2 if C<=55

3 disp('G is a small value equal to:')

4 disp(G);

5 end %if

Do lines 3 and 4 execute?

True

False

QUESTION 10

Let's say you have defined a numeric variable, num=10.

What is the command to change a numeric type into a character (or string) type? double(num)

- num2str(num)
- sprintf('Yos ', num)
- char(num)
- fprintf('%s ', num)
- str2num(num)