||'''Book'''|| Linear Algebra ||
 ||'''Author'''|| Gilbert Strang ||
 ||'''Edition'''||  ||

/* code_begins */

{{{
x = ([0,0.785,1.570,2.356,3.141,3.927,4.712,5.])
y=([0,0.707,1.000,0.707,0.000,-0.707,-1.000,-0.707,-0.000])
xi=linspace(0.2*pi,50)
yi=interp1(x,y,xi,'cubic')
}}}

/* code_ends */

 * '''Solution by''': 
   * k.k.SaiRam Phani,Student,ASR College Of Engineering