atan

the atan function returns the arctangent of a number in radians.

you can use atan to calculate the angle from the x-axis.

the atan2 function handles all four quadrants correctly.

this library provides an optimized atan implementation.

the result of atan is always between -π/2 and π/2.

we pass the ratio to atan to get the corresponding angle.

modern gpus can compute atan in parallel.

the atan value needs conversion to degrees for display.

some languages define atan as returning a result in radians.

the atan of zero is zero.

engineers often use atan in navigation calculations.

incorrect use of atan can lead to angle errors.