49.5.2 problem 1(b)

Internal problem ID [7626]
Book : An introduction to Ordinary Differential Equations. Earl A. Coddington. Dover. NY 1961
Section : Chapter 2. Linear equations with constant coefficients. Page 59
Problem number : 1(b)
Date solved : Monday, January 27, 2025 at 03:08:00 PM
CAS classification : [[_2nd_order, _missing_x]]

\begin{align*} y^{\prime \prime }+\left (1+4 i\right ) y^{\prime }+y&=0 \end{align*}

With initial conditions

\begin{align*} y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=0 \end{align*}

Solution by Maple

Time used: 0.056 (sec). Leaf size: 5

dsolve([diff(y(x),x$2)+(4*I+1)*diff(y(x),x)+y(x)=0,y(0) = 0, D(y)(0) = 0],y(x), singsol=all)
 
\[ y = 0 \]

Solution by Mathematica

Time used: 0.049 (sec). Leaf size: 6

DSolve[{D[y[x],{x,2}]+(4*I+1)*D[y[x],x]+y[x]==0,{y[0]==0,Derivative[1][y][0] ==0}},y[x],x,IncludeSingularSolutions -> True]
 
\[ y(x)\to 0 \]