R in a Nutshell, 2nd Edition

base

This package contains the basic functions that let R function as a language: arithmetic, input/output, basic programming support, and so on. Its contents are available through inheritance from any environment.

Functions

Function	Description
!	Not operator.
!=	Not equal operator.
$, $<-	Select or set named element from a list.
%%	Modulo operator.
%*%	Binary operator to multiply two matrices, if they are conformable.
%/%	Integer division operator.
%in%	Binary operator that returns a logical vector indicating if there is a match or not for its left operand.
%o%	Operator to calculate the outer product of two arrays.
%x%	Operator to calculate the Kronecker product of two arrays.
&	Operator that performs elementwise logical AND.
&&	Operator that performs logical AND, evaluating expressions from left to right until the result is determined.
*	Multiplication operator.
+	Addition operator.
-	Unary negation or binary subtraction operator.
/	Binary division operator.
:	Generates regular sequences.
::	Accesses an exported variable in a namespace.
:::	Accesses an internal variable in a namespace.
<	Less-than operator.
>	Greater-than operator.
>=	Greater-than-or-equal-to operator.
<=	Less-than-or-equal-to operator.
==	Equality operator.
@	Extracts the contents of an slot in an object with a formal (S4) class structure.
Arg	Returns argument of a complex value.
Conj	Returns conjugate of a complex value.
Cstack_info	Reports information on the C stack size and usage (if available).
Encoding, Encoding<-	Read or set the declared encodings for a character ...