Arithmetic operators

a <- c(20, 40, 60)
b <- c(100, 3, 5)

Note all operators occur on each of corresponding elements

a+b

## [1] 120  43  65

b-a

## [1]  80 -37 -55

a/b

## [1]  0.20000 13.33333 12.00000

a*b

## [1] 2000  120  300

For exponential

b**a

## [1] 1.000000e+40 1.215767e+19 8.673617e+41

b^a

## [1] 1.000000e+40 1.215767e+19 8.673617e+41

#Both give the same result

Integer division

a%%b #returns the modulus, so a/b but keeps the remainder

## [1] 20  1  0

a %/% b #returns the modulus, but keeps the integer

## [1]  0 13 12

Logical operators

a < b

## [1]  TRUE FALSE FALSE

a <= b

## [1]  TRUE FALSE FALSE

a > b

## [1] FALSE  TRUE  TRUE

a >= b

## [1] FALSE  TRUE  TRUE

a == b #Don't use the single = sign, as it will instead assign a to equal b

## [1] FALSE FALSE FALSE

a <- seq(0,10,2)
b <- seq(0,10,3)
a

## [1]  0  2  4  6  8 10

## [1] 0 3 6 9

b %in% a #This checks each element of b and seeing if it is in a (without considering matching elements)

## [1]  TRUE FALSE  TRUE FALSE