c("", "ODE: df(y,x,2) - x**2=0$", "", "Dependent variable: y;  independent variable: x$", 
"", "Conditions: none$", "This is a linear ODE of order 2.", 
"It has constant coefficients.", "Constructing particular integral using `D-operator method'.", 
"", "{y=(12*arbconst(16) + 12*arbconst(15)*x + x**4)/12}$", "", 
"", "", "")
