Programming Erlang, 2nd Edition

Arithmetic Expressions

All the possible arithmetic expressions are shown in the following table. Each arithmetic operation has one or two arguments—these arguments are shown in the table as Integer or Number (Number means the argument can be an integer or a float).

Table 3. Arithmetic expressions

Op	Description	Arg. Type	Priority
+ X	+ X	Number	1
- X	- X	Number	1
X * Y	X * Y	Number	2
X / Y	X / Y (floating-point division)	Number	2
bnot X	Bitwise not of X	Integer	2
X div Y	Integer division of X and Y	Integer	2
X rem Y	Integer remainder of X divided by Y	Integer	2
X band Y	Bitwise and of X and Y	Integer	2
X + Y	X + Y	Number	3
X - Y	X - Y	Number	3
X bor Y	Bitwise or of X and Y	Integer	3
X bxor Y	Bitwise xor of X and Y	Integer	3
X bsl N	Arithmetic bitshift left of X by N bits	Integer	3
X bsr N	Arithmetic ...