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

/* code_begins */

{{{
var('z,x,y,t')
z=3*t
x=cos(t)
y=sin(t)
fr=vector([z,x,y])
print fr
r(t)=[cos(t),sin(t),3*t]
print fr
dr=diff(r,t)
fr_dr=fr.dot_product(dr)
print fr_dr
sol=integrate(fr_dr,t,0,2*pi)
print sol}}}

/* code_ends */

 * '''Solution by''': 
   * vsowjanya, faculty, cvr college of engineering
   * <Your Name>, <Profession>, <Organization>