chapter 4

Question 1

script

Answer 1

sequence of statements stored in a file
simple form of program
executed line by line top to bottom

Question 2

live script editor

Answer 2

used to create .mlx script
1) define and italicize variables
2) run script from command window
3) script reads and modifies variables in base workspace
4) variables can be modes from command line or within the script

Question 3

whos

Answer 3

shows all variables and more Information about them (size, bytes)

Question 4

comment

Answer 4

text added for explanation of program

Question 5

%

Answer 5

single line comment, interpreter ignores the text right of % on that line

Question 6

block comment

Answer 6

when multiple lines needed, start with
%{ and end with %}
operators should be on their own lines

Question 7

whitespace

Answer 7

blank lines that make code easier to read, good practice for style

Question 8

help comments

Answer 8

comment before beginning of script file that explains what’s happening

Question 9

custom function

Answer 9

list of statements programmer creates and gives specific name

Question 10

inputs

Answer 10

variables or values you put into function

Question 11

outputs

Answer 11

variables or values that you calculate with functionfn

Question 12

function call

Answer 12

reference to functions name

Question 13

passing

Answer 13

providing input values during function calla

Question 14

arguments

Answer 14

values

Question 15

local variable

Answer 15

variable created inside function that doesn’t exist outside of it

Question 16

function call to assign values

Answer 16

values assigned are called arguments and can be multiple w/ commas or arrays

function( argument)

Question 17

local function

Answer 17

functions stored at end of script

Question 18

advantage of local function

Answer 18

share script between users is simplified

Question 19

disadvantage of local functions

Answer 19

local function in one script can’t be accessed by other scripts, can’t be called from command

Question 20

function workspace

Answer 20

temporary area where functions perform all calculations

Question 21

callstack

Answer 21

another word for function workspace

Question 22

predefined trig functions

Answer 22

sin, sind (sin in degrees), asin (inverse sin) etc

Question 23

predefined hyperbolic functions

Answer 23

sinh (hyperbolic sin) asinh (inverse hyperbolic sin)

Question 24

predefined exponential functions

Answer 24

exp (exponent), log, sqrt, etc

Question 25

tab completion

Answer 25

user can enter first few letters of a function and press tab so see what Matlab functions are available

Question 26

function documentation

Answer 26

how to use certain Matlab functions

Question 27

help functionName

Answer 27

summary of how to use function

Question 28

doc functionName

Answer 28

detailed summery

Question 29

help elfun

Answer 29

list of elementary math function

Question 30

help specfun

Answer 30

list of special functions

Question 31

what happens if you clear a predefined function?

Answer 31

nothing, it has the Matlab programmed function

Question 32

input

Answer 32

function that obtains number from user

Question 33

prompt

Answer 33

string that prompts user to input data

Question 34

live editor graphic controls

Answer 34

slider, check box, drop down, edit field, button

Question 35

disp

Answer 35

output value of a variable is displayed in a certain way

Question 36

fprintf

Answer 36

function prints formatted output from program

Question 38

format operations

Answer 38

controls notation, alignment, sigfigs, etc in format specification

Question 39

%f

Answer 39

prints floating point number as text with point notations

Question 40

%d

Answer 40

decimal integer

Question 41

%i

Answer 41

integer

Question 42

%c

Answer 42

character

Question 43

%s

Answer 43

string

Question 44

special character

Answer 44

2 character sequence used to print special items in format specification

Question 45

/n

Answer 45

new line

Question 46

"

Answer 46

print single quote

Question 47

%%

Answer 47

print one percent character

Question 48

\\

Answer 48

print one backslash

Question 49

tt

Answer 49

prints tab

Question 50

fprintf("%d", width);

Answer 50

print width as a decimal integer in single quotes

Question 51

conversion character

Answer 51

changes format of floating point number

Question 52

%e

Answer 52

scientific notation w/ lower case e

Question 53

%g

Answer 53

either %f or %e, whichever is shorter

Question 54

%E

Answer 54

scientific notation with capital E

Question 55

%G

Answer 55

either %f or %E whichever is shorter

Question 56

conversion specification

Answer 56

specifies how floating point number should be printed out, like alignment, spaces, and number of digits after decimal

Question 57

-

Answer 57

just left display

Question 58

fieldWidth

Answer 58

minimum number of digits displayed

Question 59

precision

Answer 59

number of digits to right of decimal

Question 60

conversion specification format

Answer 60

%-fieldWidth.percision convChar