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

/* code_begins */

{{{
# Example 2 - Page 405
a = vector([4,0,1])
b = vector([2,-5,1/3])
print -a
print 7 * a
print a + b
print 2 * (a - b)
print 2 * a - 2 * b
}}}

/* code_ends */

 * '''Solution by''': 
   * Ragupathy, Teacher, Ramakrishna Mission Vidyalaya
   * Venkata Ramana, Teacher, Ramakrishna Mission Vidyalaya