What is the purpose of the `ceil()` function in C++?
Understand the Problem
The question is asking about the functionality of the ceil() function in C++. Specifically, it seeks to verify understanding by offering multiple-choice options related to its purpose.
Answer
The `ceil()` function returns the smallest integer greater than or equal to a given number.
The purpose of the ceil() function in C++ is to return the smallest integer that is greater than or equal to a given floating-point number, effectively rounding the number up to the nearest integer.
Answer for screen readers
The purpose of the ceil() function in C++ is to return the smallest integer that is greater than or equal to a given floating-point number, effectively rounding the number up to the nearest integer.
More Information
The ceil() function is commonly used in mathematical calculations where you need to ensure that a number rounds up despite any decimal values.
Tips
A common mistake is accidentally using the floor() function, which rounds down, instead of ceil(). Always check your intended rounding direction.
Sources
- Ceil and Floor functions in C++ - GeeksforGeeks - geeksforgeeks.org
- C++ Math ceil() Function - W3Schools - w3schools.com
- Ceil function in C++ - Shiksha Online - shiksha.com
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