R Tutorial Playlist - Arithmetic Operations

 There is no programming language without this feature. R is different then other programming languages in regards of approach to this subject, because it treats most of values in table form out of box. This is what usually confuses new R developers, especially if they have learned some other programming language previously.

First, we are going to talk about 4 basic arithmetic operations:

Let's have two variables

a<-21

b<-10

In  order to sum those values c <- a + b or sum(a, b)

To subtract one from the another c <- a - b

To multiply one with the another c <- a * b

To divide one from the another but to keep decimal part c <- a / b

To divide but to get round integer c <- ceiling(a,b) and c <- a%\%b

To get modulo number from division c <- a%%b

To calculate exponent c <-  a ^ b

And finally some trigonometric functions sin(a), cos(a), tan(e), log(a)

If you prefer video tutorial, please check this one on YouTube