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

/* code_begins */

{{{
g=Graph()
g = Graph({1:[2,3],2:[1,4],3:[1,4],4:[2,3]}); //planar graph with 4 vertices
g.plot()
g.is_planar()
 True //output

g = Graph({1:[2,3,4],2:[1,3,4],3:[1,2,4],4:[1,2,3]}); // complete graph (k4)
g.plot()
g.is_planar()
 False //output

g = Graph({1:[2,3,4,5],2:[1,3,4,5],3:[1,2,4,5],4:[1,2,3,5],5:[1,2,3,4]}); //complete graph (k5)
g.plot()
g.is_planar()
 False //output
}}}

/* code_ends */

 * '''Solution by''': 
   * Koumudi, student, SNIST