Question

How to use atan() function to compute the principal value of the arc tangent of N in JavaScript

Answer 1

<script type="text/javascript">        
     
document.write("Math.Atan(1.0) = " + Math.atan(1.0) + "<br />");
document.write("Math.Atan(-1.0) = " + Math.atan(-1.0) + "<br />");
document.write("Math.Atan(0.0) = " + Math.atan(0.0) + "<br />");
document.write("Math.Atan(-0.0) = " + Math.atan(-0.0) + "<br />");
document.write("Math.Atan(Infinity) = " + Math.atan(Infinity) + "<br />");

/*
run:
  
Math.Atan(1.0) = 0.7853981633974483
Math.Atan(-1.0) = -0.7853981633974483
Math.Atan(0.0) = 0
Math.Atan(-0.0) = 0
Math.Atan(Infinity) = 1.5707963267948966
    
*/

</script>

 

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