||'''Book'''|| Getting started with MATLAB ||
 ||'''Author'''|| Rudra Pratap ||
 ||'''Edition'''||  ||

/* code_begins */

{{{
sage: var('y')
sage: plot3d(cos(x)*cos(y)*exp((-sqrt(x**2+y**2))/4),(x,-5,5),(y,-5,5),mesh=True)
}}}

/* code_ends */

 * '''Solution by''': 
   * <ANIL NAIR>, <STUDENT>, <CHENNAI MATHEMATICAL INSTITUTE>
   * <Your Name>, <Profession>, <Organization>