atan()

The arctangent of the given value.

Synopsis

atan(x)

Description

This function calculates the arc tangent, or inverse tangent, of the given value.

Parameters

x

The argument of the arc tangent function.

Returns

The arctangent of x. The result is in the closed interval \([-pi/2, +pi/2]\).

See Also

sin(), sinh(), asin(), asinh(), cos(), cosh(), acos(), acosh(), tan(), tanh(), atan2(), atanh()