chapter 5

Question 1

matrix

Answer 1

rectangular array of items in rows or columns
interchangable with array

Question 2

scalar

Answer 2

only store single item

Question 3

array element

Answer 3

each item in array

Question 4

vector

Answer 4

array with one dimension

Question 5

numeric array

Answer 5

array with numbers

Question 6

homogenous array

Answer 6

array with elements of same class type

Question 7

inhomogeneous array

Answer 7

elements of different class types

Question 8

row array

Answer 8

1D array with 1 row and n columns

Question 9

brackets

Answer 9

write row’s elements, aka array construction operator

Question 10

size of array

Answer 10

given as rows x columns

Question 11

paranthesis

Answer 11

used to access individual element (index)

Question 12

indexing the array

Answer 12

process of accessing arrays elements with an index

Question 13

first index is

Answer 13

1

Question 14

arithmetic operation with a scalar

Answer 14

array operation that applies arithmetic with scalar to each element in array
ex: myArray-10
subtracts 10 from each element in array

Question 15

circshift(Array, #)

Answer 15

shifts over by # spaces

Question 16

double colon operator :

Answer 16

contracts numeric row array by specifying the starting value, increment value, and terminating value

Question 17

myArray = [5:1:9]

Answer 17

5 6 7 8 9

Question 18

descending order

Answer 18

negative increments

Question 19

[]

Answer 19

delete element

Question 20

length

Answer 20

function outputs length of array

Question 21

concatenate

Answer 21

make two arrays into one by putting 2nd arrays elements at end of first’s

Question 22

column array

Answer 22

alterante 1-D array that’s vertical with one element per for ;

Question 23

;

Answer 23

separate rows of column

Question 24

transpose

Answer 24

turns rows into columns and vice versa

Question 25

transpose operator

Answer 25

’
after end of bracket

Question 26

array operations

Answer 26

row operators are the same for columns

Question 27

linear indexing

Answer 27

allows access to multiple elements simultaneously, uses integer array as index for another array

Question 28

indexing array

Answer 28

integer array

Question 29

indexed array

Answer 29

array being accessed

Question 30

end

Answer 30

keyword for last element of 1-D array

Question 31

string scalar

Answer 31

text places between “”

Question 32

string array

Answer 32

array with text

Question 33

” “

Answer 33

placeholder created by MatLab function strings

Question 34

string(inputArray)

Answer 34

converts inputArray to string array

Question 35

strength(input)

Answer 35

number of characters in each element of input string array

Question 36

strings(n, m)

Answer 36

returns array of strings with no characters of certain size

Question 37

character vector

Answer 37

series of characters in single quotes ‘

Question 38

string vs char

Answer 38

string- sentences
char- words

Question 39

char(stringScalar)

Answer 39

converts string scalar into char vector

Question 40

char(numericArray)

Answer 40

converts numeric array to char vector

Question 41

UTF16

Answer 41

codes are always positive integers

Question 42

element wise operator

Answer 42

performs operation on each corresponding pair of elements of two 1D arrays, making new array

Question 43

compatible sizes

Answer 43

if for every dimension the dimension sizes of inputs are the same or if one of the dimension size is one,
mtlab expands arrays with comp sizes during element wise operation

Question 44

element wise addition

Answer 44

+
adds corresponding pairs of 2 row arrays

Question 45

element wise subtraction

Answer 45

-

Question 46

element wise multiplication

Answer 46

.*

Question 47

element wise division

Answer 47

./

Question 48

element wise exponent

Answer 48

.^

Question 49

cross product

Answer 49

vector product, produces vector same size as input vectors

Question 50

dot product

Answer 50

scalar product
only btw row x row and column x column