Math.atan() function returns the arctangent (in
radians) of a number, that is
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- A number.
The arctangent (in radians) of the given number.
Math.atan() method returns a numeric value between and radians.
atan() is a static method of
Math, you always use it
Math.atan(), rather than as a method of a
Math object you
Math is not a constructor).
Math.atan(1); // 0.7853981633974483 Math.atan(0); // 0 Math.atan(-0); // -0 Math.atan(Infinity); // 1.5707963267948966 Math.atan(-Infinity); // -1.5707963267948966 // The angle that the line [(0,0);(x,y)] forms with the x-axis in a Cartesian coordinate system Math.atan(y / x);
Note that you may want to avoid using ±
stylistic reasons. In this case,
0 as the
second argument may be a better solution.
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