Sum of Cubes calculation with For loop in R

R Programming: Control Structure Exercise-9 with Solution

Write a R program function to compute the sum of cubes of numbers from 1 to n using a for loop.

Sample Solution :

R Programming Code :

# Define a function to compute the sum of cubes of numbers from 1 to n using a for loop
sum_of_cubes <- function(n) {
    # Initialize a variable to store the sum
    sum <- 0
    
    # Iterate through numbers from 1 to n
    for (i in 1:n) {
        # Calculate the cube of the current number
        cube <- i^3
        
        # Add the cube to the sum
        sum <- sum + cube
    }
    
    # Return the total sum of cubes
    return(sum)
}

# Test the function with an example input
n <- 5  # Example value of n
result <- sum_of_cubes(n)

# Print the result
cat("The sum of cubes of numbers from 1 to", n, "is:", result, "\n")

Output:

The sum of cubes of numbers from 1 to 5 is: 225               

Explatnaion:

In the exercise above,

• The "sum_of_cubes()" function calculates the sum of cubes of numbers from 1 to 'n'.
• It initializes a variable 'sum' to store the sum and sets it to 0.
• Using a for loop, it iterates through numbers from 1 to 'n'.
• Within each iteration, it calculates the cube of the current number (i) and adds it to the 'sum'.
• After iterating through all numbers from 1 to 'n', it returns the total sum of cubes.

R Programming Code Editor:

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