Simple Math
In R, you can use operators to perform common mathematical operations on numbers.
The + operator is used to add together two values:
Example
python
10 + 5
And the - operator is used for subtraction:
Example
python
10 - 5
You will learn more about available operators in the R Operators Tutorial.
Built-in Math Functions
R also has many built-in math functions that allows you to perform mathematical tasks on numbers.
For example, the min() and max() functions can be used to find the lowest or highest number in a set:
Example
python
max(5, 10, 15)
min(5, 10, 15)
sqrt()
The sqrt() function returns the square root of a number:
Example
python
sqrt(16)
abs()
The abs() function returns the absolute (positive) value of a number:
Example
python
abs(-4.7)
ceiling() and floor()
The ceiling() function rounds a number upwards to its nearest integer, and the floor() function rounds a number downwards to its nearest integer, and returns the result:
Example
python
ceiling(1.4)
floor(1.4)