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

Export assignment atan

• atan(x: number): number

• Computes the arctangent of a number.

  Parameters

  • x: number

    input value

  Returns number

  arctangent (in radians)

  Example

  var v = atan( 0.0 );
  // returns ~0.0

  Example

  var PI = require( `@stdlib/constants/float64/pi` );
  
  var v = atan( -PI/4.0 );
  // returns ~-0.666

  Example

  var PI = require( `@stdlib/constants/float64/pi` );
  
  var v = atan( PI/4.0 );
  // returns ~0.666

  Example

  var v = atan( NaN );
  // returns NaN