Table A1

Operators of scalar, array and matrix arithmetic

Table A2

Special characters

Table A3

Relational and logical operators

Table A4

Alphabetical list of commands and predefined variables

No.	Command	Description	Location, page
1	abs	Absolute value	12
2	acos	Inverse cosine for angle in radians	13
3	acosd	Inverse cosine for angle in degrees	14
4	acot	Inverse cotangent for angle in radians	14
5	acotd	Inverse cotangent for angle in degrees	14
6	addtodate	Adds quantity to a date	43
7	and	Logical AND	53
8	ans	Last calculated or defined value	14
9	asin	Inverse sine for angle in radians	13
10	asind	Inverse sine for angle in degrees	13
11	atan	Inverse tangent for angle in radians	14
12	atand	Inverse tangent for angle in degrees	14
13	axis	Controls axis scaling and appearance	77
14	bar	Draws a vertical bar on the plot	105
15	barh	Draws a horizontal bar on the plot	106
16	bar3	Generates 3D vertical bars on the plot	106
17	box on/off	Draws/removes box on the axes	103
18	boxplot	Generates box-whiskers plot	137
19	capaplot	Generates capability plot	139
20	cdf	The cdf for a specified distribution	125
21	chi2gof	Chi-square goodness-of-fit test	198
22	clabel	Labels iso-level lines	104
23	clc	Clear the command window	11
24	clear	Remove variables from the Workspace	20
25	close	Closes one or more Figure Windows	71
26	colormap	Sets colors	88
27	contour	Creates a 2D-contour plot	104
28	contour3	Creates a 3D-contour plot	105
29	controlchart	Generates control (Shewhart) chart	141
30	cos	Cosine for angle in radians	13
31	cosd	Cosine for angle in degrees	13
32	cot	Cotangent for angle in radians	13
33	cotd	Cotangent for angle in degrees	13
34	cumsum	Cumulative sum of elements	42
35	cylinder	Generates a cylinder	103
36	date	Generates a string with current date	43
37	datenum	Converts date string to the serial number	43
38	datestr	Converts serial date number to the string	42
39	det	Calculates a determinant	42
40	dfittoll	Interface for displaying fit distributions	180
41	diag	Creates a diagonal matrix from a vector	41
42	diff	Calculates a difference, approximates a derivative	172
43	disp	Display output	21
44	disttool	Creates interactive plots of probability distributions	142
45	doc	Displays HTML documentation in the Help Window	17
46	else, elseif	Is used with if; conditionally executes if statement condition	56
47	end	Terminates scope of for, while, if statements, or serves as last index	29, 56
48	erf	Error function	14
49	errorbar	Creates a plot with error bounded points	96
50	exp	Exponential	12
51	eye	Creates a unit matrix	41
52	factorial	Calculates factorial of positive integer n	13
53	figure	Creates the Figure Window	100
54	find	Finds indices of certain elements of array	53
55	floor	Round off toward minus infinity	13
56	for	Is used to repeat execution of command/s	57
57	format	Sets current output format	20
58	fplot	Creates a 2D plot of a function	100
59	fprintf	Displays formatted output	22, 44
60	function	Creates a new function	160
61	fzero	Solves a one-variable equation	166
62	gamma	Gamma function	14
63	global	Declares a global variable	162
64	grid	Adds grid lines	76
65	gscatter	Creates scatter plot with grouping variable	143
66	gtext	Adds a text with the help of the mouse	78
67	help	Displays explanations in the Command Window	16
68	help graph2d	Displays list of 2D graph commands	99
69	help graph3d	Displays list of 3D graph commands	99
70	help specgraph	Displays list of specialized graph commands	99
71	hist	Plots a histogram	94
72	hist3	Generates 3D histogram of bivariate data	107
73	hold on/off	Keeps current graph open, ends hold on	72
74	i	$\sqrt{-1}$	20
75	icdf	Inverse cumulative distribution function, specified distribution	125
76	if	Conditionally execute	56
77	inf	Infinity, is produced by dividing by 0	19
78	input	Prompt to user input	158
79	interp1	One-dimensional interpolation	164
80	inv	Calculates the inverse matrix	35
81	j	The same as i	20
82	jbtest	Jarque-Bera hypothesis test	198
83	kstest	Kolmogorov-Smirnov goodness-of-fit hypothesis test, single sample	199
84	kstest2	Kolmogorov-Smirnov goodness-of-fit hypothesis test, two samples	199
85	legend	Adds a legend to the plot	80
86	length	Number of elements in vector	40
87	load	Load data stored in the mat-file	197
88	lillietest	Lilliefors' goodness-of-fit hypothesis test	200
89	linspace	Generates a linearly spaced vector	29
90	log	Natural logarithm	12
91	log10	Decimal logarithm	12
92	loglog	Generates a 2D plot with log axes	102
93	lookfor	Search for the word in the all help entries	16
94	max	Returns maximal value	41
95	mean	Calculates mean value	41
96	median	Calculates median value	42
97	mesh	Creates a 3D plot with meshed surface	86
98	meshgrid	Creates X,Y matrices for further plotting	85
99	min	Returns minimal value	41
100	NaN	Not a number	20
101	n. . .fit	Fits data for the given distribution	178
102	n. . .pdf	Calculates pdf for the given distribution	129
103	n. . .cdf	Calculates cdf for the given distribution	129
104	n. . .inv	Inverse cdf for the given distribution	130
105	n. . .rand	Generates pseudorandom numbers for the given distribution	130
106	n. . .stat	Calculates mean and variance for the given distribution	130
107	normcdf	Normal cumulative distribution function	124
108	norminv	Inverse of the normal cdf	124
109	normpdf	Normal probability density function	124
110	normplot	Generates normal probability plot	144
111	normspec	Plots normal density between specification limits	144
112	not	Logical NOT	53
113	num2str	Converts numbers to a string	43
114	ode. . .	ODE solver command, general form	211
115	ode113	Solves non-stiff ODEs	209
116	ode15i	Solves implicit ODEs	209
117	ode15s	Solves stiff ODEs	209, 211
118	ode23	Solves non-stiff ODEs	209
119	ode23s	Solves stiff ODEs	209
120	ode23t	Solves stiff ODEs	209
121	ode23tb	Solves stiff ODEs	209
122	ode45	Solves non-stiff ODEs	209, 211
123	ones	Creates an array with ones	38
124	or	Logical OR	53
125	pareto	Generates Pareto chart	95
126	pdf	The pdf for a specified distribution	125
127	pi	Number π	12
128	pie	Creates a 2D pie plot	109
129	pie3	Creates a 3D pie plot	109
130	plot	Creates a 3D line plot	68
131	plot3	Creates a 3D plot with points and/or lines	82
132	polar	Creates a 2D plot in polar coodinates	101
133	polyfit	Fits the data by a polynomial	175
134	polyval	Evaluates the polynomial value	175
135	probplot	Generates a comparative normal distribution plot	143
136	quad	Numerical integration, Simpson's rule	168
137	rand	Generates uniformly distributed random numbers	38
138	randi	Generates integer random numbers from uniform discrete distribution	39, 41
139	randn	Generates normally distributed numbers	38
140	random	Generates random numbers for given distribution	128
141	randtool	Opens GUI for the random numbers	142
142	ranksum	Wilcoxon rank sum test, equal medians	195
143	repmat	Duplicates a matrix	40
144	reshape	Changes size of a matrix	40
145	rng	Controls random number generators	39
146	rotate3d on/off	Interactively rotates/stops rotation of a 3D plot	93
147	round	Round off toward nearest integer	13
148	sampsizepwr	Calculates sample size and power for hypothesis test	196
149	scatter	Generates a 2D scatter plot	98
150	semilogy	Creates a 2D plot with log-scaled y-axis	101
151	signrank	Wilcoxon signed rank test, zero median	200
152	sin	Sine for angle in radians	13
153	sind	Sine for angle in degrees	13
154	size	Size of array/matrix	40
155	sort	Arranges elements in ascending or descending order	42
156	sphere	Generates a sphere plot	102
157	sqrt	Square root	12
158	stairs	Creates star-like plot	108
159	std	Calculates standard deviation	42
160	stem	Creates a 2D stem plot	107
161	stem3	Creates a 3D stem plot	108
162	strvcat	Concatenates strings vertically	41
163	subplot	Places multiple plots on the same page	73
164	sum	Calculates sum of elements	42
165	surf	Creates a 3D surface plot	86
166	surfc	Generates surface and counter plots together	105
167	tan	Tangent for angle in radians	13
168	tand	Tangent for angle in degrees	13
169	text	Adds a text to the plot	78
170	title	Adds a caption to the plot	77
171	transpose (’)	Transposes elements of an array	31
172	trapz	Numerical integration with the trapezoidal rule	170
173	ttest	One- and paired-sample t-test	201
174	ttest 2	Two-samples test	201
175	tinv	inverse cdf of Students' t	181
176	ver	Displays versions of the MATLAB products	18
177	view	Specifies a viewpoint for 3D graph	89
178	while	Repeats execution of command/s	57
179	who	Displays variables stored in the Workspace	20
180	whos	Displays Workspace variables and additional information about the variables	20
181	xlabel	Adds a label to x-axis	77
182	ylabel	Adds a label to y-axis	77
183	zeros	Creates an array with zeros	38
184	zlabel	Adds a label to z-axis	83
185	ztest	One-sample Z-test	201