Chapter 4 : Programming with Matlab

Question 1

equal to

Answer 1

==

Question 2

not equal to

Answer 2

~=

Question 3

greater than or equal to

Answer 3

> =

Question 4

less than or equal to

Answer 4

<=

Question 5

less than

greater than

Answer 5

<

>

Question 6

NOT

Answer 6

~

Question 7

returns an array as the same dimension as A; the new array has 1s where A is 0 and 0s where A is nonzero

Answer 7

~A

Question 8

AND

Answer 8

&

Question 9

A & B

Answer 9

returns an array of the same dimension as A and B; then new array has 1s where both A and B have nonzero elements and 0s where either A or B is 0

Question 10

short circuit AND

Answer 10

&&

Question 11

operator for scalar logical expressions. returns true if both A and B evaluate true, and false if they do not

Answer 11

A && B

Question 12

OR

Answer 12

|

Question 13

A || B

Answer 13

operator for scalar logical expressions returns true if either A or B or both evaluate to true, and false if they do not

Question 14

what is the order of precedence for operator types?

Answer 14

1. parenthesis, starting with inner most pair
2. arithmetic operators and logical NOT; evaluated left to right
3. relational operators evaluated from left to right
4. logical AND
5. logical OR

Question 15

what is the format for if then statements

Answer 15

if STATEMENTS EXPRESSION
STATEMENT GROUP 1
end

Question 16

what is the format for an else statement

Answer 16

if LOGICAL EXPRESSION
STATEMENT GROUP 1
else
STATEMENT GROUP 2
end

Question 17

what is the format for an elseif statement?

Answer 17

if STATEMENTS EXPRESSION
STATEMENT GROUP 1
elseif LOGICAL EXPRESSION 2
STATEMENT GROUP 2
else
STATEMENT GROUP 3
end

Question 18

What is required after every if then statement?

Answer 18

end

except an elseif

Question 19

what is the typical structure for a loop?

Answer 19

for LOOP VARIABLE = M:S:N
STATEMENTS
end

Question 20

what does the function ‘break’ do?

Answer 20

the program execution will jump to the ‘end’