>
    <FONT SIZE=3><SPAN LANG="en-US">x[0]=0.0;</SPAN></FONT>
    <FONT SIZE=3><SPAN LANG="en-US">delta[0]=0.0;</SPAN></FONT>
    <FONT SIZE=3><SPAN LANG="en-US">Analytic_problems.gms(x,50.0,2,y,0.01,0.001,0.5,delta,</SPAN></FONT>
                      <FONT SIZE=3><SPAN LANG="en-US">testgms,1.0e-5,1.0e-5,n,jev,lu,0,false);</SPAN></FONT>
<FONT SIZE=3><SPAN LANG="en-US">	}</SPAN></FONT>


  <FONT SIZE=3><SPAN LANG="en-US">public void derivative(int r, double y[], double delta[])</SPAN></FONT>
  <FONT SIZE=3>