atanf - Linux

Overview

atanf calculates the arctangent of a floating-point number. It is particularly useful in trigonometry and other mathematical operations.

Syntax

atanf(float number)

Options/Flags

None

Examples

• Calculate the arctangent of 0.5:

$ atanf(0.5)
0.4636476090008061

• Calculate the arctangent of -0.25 within a Python script:

import math
angle = math.atanf(-0.25)
print(angle)  # Output: -0.2449786631268641

Common Issues

• Invalid input: Ensure that the input is a valid floating-point number. Invalid input may result in errors or unexpected behavior.

Integration

• Integration with sqrtf: Calculate the arctangent of the square root of a number:

$ atanf( sqrtf(2) )
0.7853981633974483

• Integration with powf: Calculate the arctangent of a number raised to a power:

$ atanf( powf(2, 3) )
1.2490457723982544

Related Commands

• atan2f: Calculate the arctangent of two floating-point numbers, considering the signs of both numbers.
• cosf: Calculate the cosine of a floating-point number.
• sinf: Calculate the sine of a floating-point number.