Operators

Operator	What it does

x+y(Numeric)	Adds x and y together
x+y(string)	Concatenates x and y together
x-y		Subtracts y from x
x*y		Multiplies x and y together
x/y		Divides x by y
x%y		Modulus of x and y (ie: the remainder when  x is divided by y)
x++,++x		Adds one to x (same as x=x+1)
x--,--x		Subtracts one from x (same as x=x-1)
-x		Reverses the sign on x