External module "math/base/special/atan2/docs/types/index.d"

Export assignment atan2

• atan2(y: number, x: number): number

• Computes the angle in the plane (in radians) between the positive x-axis and the ray from (0,0) to the point (x,y).

  Parameters

  • y: number

    y coordinate

  • x: number

    x coordinate

  Returns number

  angle (in radians)

  Example

  var v = atan2( 2.0, 2.0 ); // => atan(1.0)
  // returns ~0.785

  Example

  var v = atan2( 6.0, 2.0 ); // => atan(3.0)
  // returns ~1.249

  Example

  var v = atan2( -1.0, -1.0 ); // => atan(1.0) - π
  // returns ~-2.356

  Example

  var v = atan2( 3.0, 0.0 ); // => π/2
  // returns ~1.571

  Example

  var v = atan2( -2.0, 0.0 ); // => -π/2
  // returns ~-1.571

  Example

  var v = atan2( 0.0, 0.0 );
  // returns 0.0

  Example

  var v = atan2( 3.0, NaN );
  // returns NaN

  Example

  var v = atan2( NaN, 2.0 );
  // returns NaN