atanl - Linux


atanl is a command-line utility that calculates the arctangent of a number. It is commonly used in trigonometry and geometry applications, as well as in programming and mathematics.


atanl(x, y)
  • x: The numerator of the arctangent calculation.
  • y: The denominator of the arctangent calculation.


This command does not support any options or flags.


# Calculate the arctangent of 3
atanl(3, 0)

# Calculate the angle between two points (1, 2) and (4, 6)
atanl(6 - 2, 4 - 1)

Common Issues

  • Division By Zero Error: If the denominator is zero, atanl will return an error. Ensure that the denominator is always non-zero.


atanl can be integrated with other Linux commands to perform more complex calculations. For example:

# Calculate the angle of inclination of a line using bc
echo "scale=4; a(10, 1)" | bc -l

Related Commands

  • acos: Calculates the arccosine of a number.
  • asin: Calculates the arcsine of a number.
  • tan: Calculates the tangent of a number.