atan function

double atan(

num x

)

Converts x to a double and returns its arc tangent in radians.

Returns a value in the range -PI/2..PI/2, or NaN if x is NaN.

Implementation

external double atan(num x);

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-math/atan.html