🚀 Programming Example

Arithmetic operation in R

👁 438 Views

💻 Practical Program

📘 Step Learning

Type 2^5 in the editor to calculate 2 to the power 5.
Type 28 %% 6 to calculate 28 modulo 6.
Note how the # symbol is used to add comments on the R code.

💻 Program Code

# An addition
5 + 5 

# A subtraction
5 - 5 

# A multiplication
3 * 5

 # A division
(5 + 5) / 2 

# A Exponentiation
2^5

# a Modulo
5 %% 3

# Exponentiation


# Modulo

🖥 Program Output

> # An addition
> 5 + 5
[1] 10
> 
> # A subtraction
> 5 - 5
[1] 0
> 
> # A multiplication
> 3 * 5
[1] 15
> 
>  # A division
> (5 + 5) / 2
[1] 5
> 
> # A Exponentiation
> 2^5
[1] 32
> 
> # a Modulo
> 5 %% 3
[1] 2
> 
> # Exponentiation
> 
> 
> # Modulo
> # An addition
> 5 + 5
[1] 10
> 
> # A subtraction
> 5 - 5
[1] 0
> 
> # A multiplication
> 3 * 5
[1] 15
> 
>  # A division
> (5 + 5) / 2
[1] 5
> 
> # A Exponentiation
> 2^5
[1] 32
> 
> # a Modulo
> 5 %% 3
[1] 2

📘 Explanation

Arithmetic with R

In its most basic form, R can be used as a simple calculator. Consider the following arithmetic operators:

Addition:?+
Subtraction:?-
Multiplication:?*
Division:?/
Exponentiation:?^
Modulo:?%%

The last two might need some explaining:

The?^?operator raises the number to its left to the power of the number to its right: for example?3^2?is 9.
The modulo returns the remainder of the division of the number to the left by the number on its right, for example 5 modulo 3 or?5 %% 3?is 2.

With this knowledge, follow the instructions below to complete the exercise.

🎯 How to learn from this example

First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.

🔥 Practice suggestion

Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.