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

/* code_begins */

{{{
x,c=var('x,c')
f=(x-c)/2
d_f=derivative(f,x) 
# d_f is the first derivative of f 
print "d_f=" ,d_f



}}}

/* code_ends */

 * '''Solution by''': 
   * <sunny mehrotra <student>, <IIT ROORKEE>
   * <sharat S.I <student>,<IIT ROORKEE>
   * <Your Name>, <Profession>, <Organization>