||'''Book'''|| Getting started with MATLAB || ||'''Author'''|| Rudra Pratap || ||'''Edition'''|| || /* code_begins */ {{{ sage: y=var('y') sage: plot3d(cos(x)*cos(y)*exp(-sqrt((x**2+y**2))/4),(x,-5,5),(y,-5,5)) }}} /* code_ends */ * '''Solution by''': * , < STUD> < Symbiosis,pune > * , ,