cbrt - Linux
Overview
cbrt calculates the cube root of a floating-point number. It’s particularly useful in mathematical computations, where finding the cube root is a common task.
Syntax
cbrt NUM
Parameters:
- NUM: The number for which to find the cube root. Must be a floating-point value.
Options/Flags
None
Examples
- To calculate the cube root of 8:
cbrt 8
Output:
2
- To find the cube root of -27:
cbrt -27
Output:
-3
- To assign the cube root of 64 to a variable:
VAR=$(cbrt 64)
Common Issues
-
Invalid input: The input must be a valid floating-point number. Non-numeric or negative values (for cube root calculation) will result in an error.
-
Accuracy limitations: Cube root calculations using floating-point numbers may result in a precision loss compared to exact mathematical calculations.
Integration
cbrt can be combined with other commands for various tasks:
- Mathematical operations: Calculate cube roots in complex mathematical expressions using pipes or scripts.
- Data analysis: Extract cube roots from data sets for statistical analysis or data visualization.
- Geometric calculations: Compute cube roots in geometric formulas, such as finding the radius of a sphere given its volume.
Related Commands
- sqrt: Calculates the square root.
- pow: Raises a number to a specified power.
- awk: Supports mathematical operations and allows for cube root calculations using the sqrt(num) ^ 3 syntax.