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

/* code_begins */

{{{
var('z')
z=x+y*I
f=(z-2)/(z+2)
u=w.real_part()
v=w.imag_part()
f(0+4*I)
u(0,4)
v(0,4)


}}}

/* code_ends */

 * '''Solution by''': 
   * sneha , student ,pec
   * divya ,student ,pec