4 Conclusion
In this paper, we study the nonhomogeneous second order differential equation of Cauchy-Euler equation with a bulge function which is denoted by f(ζ) = e−(ζ−l)2 2 where l is a positive constant. H. Kim [2] found the solution of EulerCauchy equation expressed by differential operator of homogeneous second order differential equation using Laplace transform. For this study, we use the method of the reduction of order to solve the nonhomogeneous second order differential equation of Cauchy-Euler equation with a bulge function. We apply the Taylor series expansion to the bulge function to obtain the solution.