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Questions and Answers
What is the output of factorial(6) in the given code snippet?
What does the is_armstrong function determine about a number?
In the given code, what is the output when is_armstrong(123) is called?
What is the result of min(numbers) in the code snippet?
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The Find_Prime_No function in the code snippet is used to determine whether a given number:
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Find_Prime_No(6) would return:
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What is the output when is_armstrong(9474) is called in the given code snippet?
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In the code snippet, what happens when Find_Prime_No(17) is executed?
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What is the output of maximum variable in the code snippet?
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What does the min function calculate in the numbers vector?
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Which statement accurately describes what the Find_Prime_No function does?
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When factorial(0) is called, what is the output?
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Study Notes
Factorial Function
- The factorial function calculates the product of all positive integers less than or equal to a given number.
- factorial(6) returns 720.
- factorial(4) returns 24.
- factorial(0) returns 1.
Armstrong Number
- An Armstrong number is a number that is equal to the sum of its own digits, each raised to the power of the number of digits.
- The function
is_armstrongchecks if a number is an Armstrong number. - 153, 371, and 9474 are Armstrong numbers.
- 123 is not an Armstrong number.
Minimum and Maximum Values
- The
minfunction returns the minimum value in a set of numbers. - The
maxfunction returns the maximum value in a set of numbers. - In the set of numbers {5, 2, 9, 1, 7}, the minimum value is 1 and the maximum value is 9.
Prime Number
- A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
- The function
Find_Prime_Nochecks if a number is prime. - 13 is a prime number.
- The
Find_Prime_Nofunction uses a loop to check if a number is divisible by any number from 2 to n-1, where n is the input number. If it is not divisible, it returns TRUE, indicating that the number is prime.
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Description
Test your knowledge of factorial and Armstrong number functions in R programming with this quiz. Evaluate your understanding by predicting the output of the code snippets provided.
