cacosf - Linux
Overview
cacosf is a command-line utility used to calculate the inverse cosine of a floating-point number within the range [-1, 1]. It provides an accurate approximation of the mathematical inverse cosine function.
Syntax
cacosf [options] <input>
where:
- Options: Command-line options to modify the behavior of cacosf.
- : Floating-point number between -1 and 1 for which the inverse cosine is calculated.
Options/Flags
| Option | Description | Default |
|—|—|—|
| -r | Round the result to the nearest integer | Disabled |
| -f
Examples
Simple Usage:
cacosf 0.5
Output: 1.0471975511965979
Rounding the Result:
cacosf -r 0.75
Output: 2
Specifying Floating-Point Precision:
cacosf -f 3 0.25
Output: 1.326
Common Issues
- Invalid Input: Input values outside the range [-1, 1] will result in undefined behavior.
- Imprecise Results: While cacosf provides accurate approximations, the results may not be perfectly precise, especially for values close to -1 or 1.
Integration
cacosf can be integrated into scripts or command chains to perform more complex calculations. For example:
echo "0.75" | cacosf -r
Related Commands
- cosf: Calculates the cosine of a floating-point number.
- acos: Calculates the inverse cosine of a number in the range [0, pi].