title: Value of tan(90) in c?
body: <p>the value it give is 557135813.94455. does the value will remain same every time?? why its not showing infinity??</p>
  
  <pre><code>#include &lt;stdio.h&gt;     
  #include &lt;math.h&gt;       
  
  #define PI 3.14159265
  
  int main ()
  {
    double param, result;
    param = 90.0;
    result = tan ( param * PI / 180.0 );
    printf ("The tangent of %f degrees is %f.\n", param, result );
    return 0;
  }
  </code></pre>