Internal problem ID [13926]
Book: Ordinary Differential Equations. An introduction to the fundamentals. Kenneth B. Howell.
second edition. CRC Press. FL, USA. 2020
Section: Chapter 33. Power series solutions I: Basic computational methods. Additional Exercises.
page 641
Problem number: 33.5 (d).
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_Emden, _Fowler]]
\[ \boxed {y^{\prime \prime }-3 x^{2} y=0} \] With the expansion point for the power series method at \(x = 0\).
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 24
Order:=6; dsolve(diff(y(x),x$2)-3*x^2*y(x)=0,y(x),type='series',x=0);
\[ y \left (x \right ) = \left (1+\frac {x^{4}}{4}\right ) y \left (0\right )+\left (x +\frac {3}{20} x^{5}\right ) D\left (y \right )\left (0\right )+O\left (x^{6}\right ) \]
✓ Solution by Mathematica
Time used: 0.001 (sec). Leaf size: 28
AsymptoticDSolveValue[y''[x]-3*x^2*y[x]==0,y[x],{x,0,5}]
\[ y(x)\to c_2 \left (\frac {3 x^5}{20}+x\right )+c_1 \left (\frac {x^4}{4}+1\right ) \]