Name

atan()

Description

The inverse of tan(), returns the arc tangent of a value. This function expects the values in the range of -Infinity to Infinity (exclusive) and values are returned in the range -PI/2 to PI/2 .

Examples

  • float a = PI/3;
    float t = tan(a);
    float at = atan(t);
    // Prints "1.0471976 : 1.7320509 : 1.0471976"
    println(a + " : " + t + " : " +  at);
    
  • float a = PI + PI/3.0;
    float t = tan(a);
    float at = atan(t);
    // Prints "4.1887903 : 1.7320513 : 1.0471977"
    println(a + " : " + t + " : " +  at);
    

Syntax

  • atan(value)

Parameters

  • value(float)-Infinity to Infinity (exclusive)

Return

  • float