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

/* code_begins */

{{{
prob---1


var ('z1,z2')
z1= 1+i
z2= -2+3*i
abs(z1+z2)
sqrt(17)

prob---2


var ('z1, z2')
z1= -2+2*i
z2= 3*i
z1*z2
z1/z2
abs(z1*z2)
abs(z1/z2)
arg(z1*z2)
arg(z1)+(arg(z2)-2*pi)
arg(z1*z2)
arg(z1)+(arg(z2)-2*pi)
-2*pi+3.92699081699
arg(z1/z2)
arg(z1)-arg(z2)

}}}

/* code_ends */

 * '''Solution by''': 
   * <T.sampath reddy>, <Student>, <VREC>
   * <Sajith kumar>, <student>, <VNRVJIET>