Definition: This calculator determines if a given number is a perfect cube, which is a number that can be expressed as the product of an integer multiplied by itself three times (e.g., \( n \times n \times n \)). If the number is a perfect cube, the calculator also provides its cube root.
Purpose: It helps users quickly identify whether a number is a perfect cube and find its cube root, which is useful in mathematics, number theory, and educational contexts.
A number \( N \) is a perfect cube if there exists an integer \( m \) such that:
The calculator computes the cube root of the absolute value of the input number and checks if it is an integer. If so, the number is a perfect cube, and the cube root is returned .
Steps:
Perfect cubes are important for:
Example 1 (Positive Number): Check if 125 is a perfect cube:
Example 2 (Negative Number): Check if -216 is a perfect cube:
Q: Can negative numbers be perfect cubes?
A: Yes, negative numbers can be perfect cubes. For example, \( -8 \) is a perfect cube because \( (-2) \times (-2) \times (-2) = -8 \) .
Q: What is the cube root of zero?
A: The cube root of zero is zero, since \( 0 \times 0 \times 0 = 0 \). Thus, 0 is a perfect cube .
Q: How does the calculator determine if a number is a perfect cube?
A: It computes the cube root of the number and checks if it is an integer. If so, the number is a perfect cube, and the integer cube root is displayed