||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
f(x) = x 
f
h(x) = pi
h 
bn = pi
g(x)= a0
for n in range(1,5):
	
	an = integrate(f(x)*cos(n*x)/pi, (x,-pi,pi))
	bn = integrate(f(x)*sin(n*x)/pi, (x,-pi,pi))	
		
 	g(x) =  an*cos(n*pi/pi*x) + bn*sin(n*pi/pi*x) + g(x) 
	

print g(x)+ h(x)
}}}

/* code_ends */

 * '''Solution by''': 
   * Amit Tewari, Student, IIT Roorkee
   * Rachit Jha, Student, IIT Roorkee
   * Arnab Basu, Student, IIT Roorkee
   * Shubham Mittal, Student, IIT Roorkee