||'''Book'''|| Advanced Engineering Mathematics || ||'''Author'''|| Erwin Kreyszig || ||'''Edition'''|| 8th Edition || /* code_begins */ {{{ #Kreyszig Pg.108 Problem set 2.9 Question 21 var('x') y=function('y',x) print desolve(diff(y,x,2)+diff(y,x)==2+2*x+x*x,[y,x],ics=[0,8,-1])}}} /* code_ends */ * '''Solution by''': * , , * , ,