Basic knowledge

Bitwise operations

set, offset, or compare specific bitfields

-	-	-
bitand	Bitwise `AND`
bitor	Bitwise `OR`
bitxor	Bitwise `XOR`
bitcmp	Bitwise complement
bitget	Get the bit at the specified position
bitset	Set the bit at the specified position
bitshift	Shift bits by specified number of bits
swapbytes	swap byte order

Set operation

union, intersection, set relationship

-	-	-
intersect	Set the intersection of two arrays
ismember	Determine whether an array element is a set array member
setdiff	Set the difference between two arrays
setxor	Set XOR of two arrays
union	Set the union of two arrays
unique	Unique value in an array
ismembertol	set membership within tolerance
uniquetol	unique values ââwithin tolerance
join	Merge two tables or timetables row by row using a key variable
innerjoin	Inner join between two tables or timetables
outerjoin	Outer join between two tables or timetables

Logical (Boolean) operations

true or false condition

-	-	-
[Short-circuit &&,		](https://www.mathworks.com/help/matlab/ref/logicaloperatorsshortcircuit.html)
&	Computational logic `AND`
~	Computational logic `NOT`
[	](https://www.mathworks.com/help/matlab/ref/or.html)	Calculation logic `OR`
xor	Compute logical exclusive `OR`
all	Determine whether all array elements are non-zero or `true`
any	Determine if any array elements are non-zero
false	logical `0` (false)
find	Find the index and value of non-zero elements
islogical	Determine whether the input is a logical array
logical	Convert numeric values ââto logical values
true	Logical value `1` (true)

Relational operations

value comparison

-	-	-
==	Determine equality
>=	Determine greater than or equal to
>	Determine greater than
<=	Determine less than or equal to
<	Determine less than
~=	Determine Inequality
isequal	Determine array equality
isequaln	Test array equality, treat `NaN` values ââas equal

Custom Binary Functions

-	-	-
bsxfun	Apply element-wise operations on two arrays (with implicit expansion enabled)

Modular division and rounding

-	-	-
mod	Remainder after division (modulo operation)
rem	Remainder after division
idivide	Divisibility with rounding options
ceil	round towards positive infinity
fix	round towards zero
floor	round towards negative infinity
round	round to the nearest decimal or integer

Basic Arithmetic

#Addition

+ Add numbers, append strings
sum sum of array elements
cumsum cumulative sum
movsum moving sum

#Subtraction

- subtraction
diff difference and approximate derivative

#Multiplication

-	-	-
.*	Multiplication
*	Matrix multiplication
prod	product of array elements
cumprod	cumulative product
pagemtimes	Matrix multiplication by page
tensorprod	Tensor products between two tensors

#Division

-	-	-
./	Array right division
[.](https://www.mathworks.com/help/matlab/ref/ldivide.html)	Array left division
/	Solve the system of linear equations xA = B about x
[](https://www.mathworks.com/help/matlab/ref/mldivide.html)	Solve the system of linear equations Ax = B with respect to x

#Power

.^ Element-wise exponentiation
^ matrix power

#Transpose

-	-	-
.'	Transpose a vector or matrix
'	complex conjugate transpose
pagetranspose	Transpose by page
pagectranspose	Complex conjugate transpose by page

#Array notation

uminus unary subtraction
uplus unary addition

String comparison

-	-	-
matches	Determine if a pattern matches a string
strcmp	Compare strings
strcmpi	Compare strings (case insensitive)
strncmp	compares the first `n` characters of a string (case sensitive)
strncmpi	Compare the first `n` characters of a string (case insensitive )

String editing

-	-	-
erase	Delete a substring in a string
eraseBetween	Delete the substring between the start and end
extract	Extract a substring from a string
extractAfter	Extract the substring after the specified position
extractBefore	Extract the substring before the specified position
extractBetween	Extract the substring between the starting point and the ending point
insertAfter	Insert a string after the specified substring
insertBefore	Insert a string before the specified substring
pad	Add leading or trailing characters to a string
strip	Remove leading and trailing characters in a string
lower	convert string to lowercase
upper	convert string to uppercase
reverse	Reverse the order of characters in a string
deblank	Remove trailing blanks at the end of a string
strtrim	Remove leading and trailing blanks from a string
strjust	align string

String matching pattern -join and split

-	-	-
join	Merge strings
plus	Add numbers, append strings
split	Split string at delimiter
splitlines	Split a string at newlines
strjoin	join the strings in the array
strsplit	Splits a string or character vector at the specified delimiter
strtok	Selected string part
extract	Extract a substring from a string
extractAfter	Extract the substring after the specified position
extractBefore	Extract the substring before the specified position
extractBetween	Extract the substring between the starting point and the ending point

String matching pattern -regular expression

-	-	-
regexp	match regular expression (case sensitive)
regexpi	Match regular expressions (case insensitive)
regexprep	Replace text using regular expressions
regexptranslate	Convert text to regular expressions
regexpPattern	Match the pattern of the specified regular expression

String matching pattern -custom pattern display

-	-	-
maskedPattern	pattern with specified display name
namedPattern	Specify a named pattern

String matching pattern -Boundary pattern

-	-
alphanumericBoundary	Matches the boundary between alphanumeric and non-alphanumeric characters
digitBoundary	Matches the boundary between digit characters and non-digit characters
letterBoundary	Matches the boundary between alphabetic and non-alphabetic characters
whitespaceBoundary	Matches the boundary between whitespace and non-whitespace characters
lineBoundary	match the beginning or end of a line
textBoundary	match the beginning or end of the text
lookAheadBoundary	match the boundary before the specified pattern
lookBehindBoundary	Boundary after matching the specified pattern

String matching pattern -pattern search rules

-	-	-
optionalPattern	Make pattern matching optional
possessivePattern	Match pattern without backtracking
caseSensitivePattern	Match patterns in a case-sensitive manner
caseInsensitivePattern	Match patterns in a case-insensitive manner
asFewOfPattern	The number of pattern matches should be as few as possible
asManyOfPattern	Pattern matching as many times as possible

String match pattern -character match pattern

-	-	-
alphanumericsPattern	match alphanumeric characters
characterListPattern	Match characters in the list
digitsPattern	Match digit characters
lettersPattern	match letter pattern
whitespacePattern	match whitespace characters
wildcardPattern	Match as few characters of any type as possible

String matching pattern -build pattern

-	-	-
pattern	pattern for searching and matching text

character or string -find and replace

look up

-	-	-
contains	Determine if there is a pattern in the string
matches	Determine if a pattern matches a string
count	Count the number of occurrences of a pattern in a string
endsWith	Determine if a string ends with a pattern
startsWith	Determine whether a string starts with a pattern
strfind	Find a string in other strings
sscanf	Read formatted data from a string
replace
-	-	-
---	---	---
replace	Find and replace one or more substrings
replaceBetween	Replace the substring between the start and end
strrep	Find and replace substring

Character or string -determine type and attributes

type of data

-	-	-
ischar	Determine whether the input is a character array
iscellstr	Determines if input is a cell array of character vectors
isstring	Determine whether the input is an array of strings
isStringScalar	Determine whether the input is a string array containing one element
text attribute
-	-	-
---	---	---
strlength	string length
isstrprop	Determine which characters in the input string belong to the specified category
isletter	Determine which characters are letters
isspace	Determine which characters are whitespace characters

CHAR or STRING -convert between numeric and string

-	-	-
double	double precision array
string	string array
str2double	Convert a string to a double value
num2str	Convert numbers to character arrays

Char or string -convert input arguments

-	-
convertCharsToStrings	convert character array to string array, other arrays remain unchanged
convertStringsToChars	Convert string array to character array, other arrays remain unchanged
convertContainedStringsToChars	Convert an array of strings at any level of a cell array or structure

Character or string array

-	-	-
compose	Format data into multiple strings
sprintf	Format data as string or character vector
strcat	Concatenate strings horizontally
append	Merge strings

Character array

-	-	-
char	character array
cellstr	Convert to a cell array of character vectors
blanks	Create a blank character array
newline	Create newline

Array of strings

-	-	-
string	string array
strings	Create a string array that does not contain characters
join	Merge strings
plus	Add numbers, append strings

Loops and conditional statements

-	-
if, elseif, else	Execute statement when condition is true
switch, case, otherwise	Execute one of multiple sets of statements
for	A `for` loop used to repeat a specified number of times
while	A `while` loop that executes repeatedly while a condition is true
try, catch	Execute the statement and catch the resulting error
break	Terminate execution of a for or while loop
return	Return control to the calling script or function
continue	Passes control to the next iteration of a `for` or `while` loop
pause	Temporarily suspend the execution of `MATLAB`
parfor	Parallel for loop
end	Terminate a code block or indicate the maximum array index

Value type

Create numeric variables

-	-	-
double	double precision array
single	single precision array
int8	8-bit signed integer array
int16	16-bit signed integer array
int32	32-bit signed integer array
int64	64-bit signed integer array
uint8	Array of 8-bit unsigned integers
uint16	16-bit unsigned integer array
uint32	32-bit unsigned integer array
uint64	64-bit unsigned integer array
Convert between numeric types
-	-	-
---	---	---
cast	Convert variables to different data types
typecast	Convert data types without changing the underlying data
query type and value
-	-	-
---	---	---
allfinite	Determine if all array elements are finite
anynan	Determine if any array element is NaN
isinteger	Determine whether the input is an integer array
isfloat	Determine whether the input is a floating-point array
isnumeric	Determine whether the input is a numeric array
isreal	Determine whether the array uses complex storage
isfinite	Determine which array elements are finite
isinf	Determine which array elements are infinite
isnan	Determine which array elements are NaN
Value range
-	-	-
---	---	---
eps	Floating point relative precision
flintmax	The largest consecutive integer in floating point format
Inf	Create an array with all values ââ`Inf`
intmax	The maximum value of a specific integer type
intmin	The minimum value of a specific integer type
NaN	Create an array where all values ââare `NaN`
realmax	The largest positive floating point number
realmin	Minimum standard floating point number

Input the command

-	-	-
ans	Most recently calculated answer
clc	Clear the command line window
diary	Record the text of the command line window into the log file
format	Set the output display format
home	Send cursor reset
iskeyword	Determine if the input is a MATLAB keyword
more	Control paging output in the command line window
commandwindow	Select command window
commandhistory	Open command history window

#Objects

-	-
DisplayFormatOptions	Output display format in the command line window

Comments