x + y x - y x * y x / y x ^ y x %% y x %/% y
1 ^ y and y ^ 0 are 1, always.
x ^ y should also give the proper ``limit'' result when
either argument is infinite (i.e., +- Inf).
Objects such as arrays or time-series can be operated on this way provided they are conformable.
+ for addition, - for
subtraction * for multiplication, / for division and
^ for exponentiation.
%% indicates x mod y and %/% indicates integer
division. It is guaranteed that x == (x %% y) + y * ( x %/% y )
unless y == 0 where the result is NA or
NaN (depending on the typeof of the arguments).
Math for miscellaneous and Special for special
mathematical functions.x <- -1:12 x + 1 2 * x + 3 x %% 2 #-- is periodic x %/% 5