65.6.5 problem 12.1 (v)

Internal problem ID [13754]
Book : AN INTRODUCTION TO ORDINARY DIFFERENTIAL EQUATIONS by JAMES C. ROBINSON. Cambridge University Press 2004
Section : Chapter 12, Homogeneous second order linear equations. Exercises page 118
Problem number : 12.1 (v)
Date solved : Tuesday, January 28, 2025 at 06:01:56 AM
CAS classification : [[_2nd_order, _missing_x]]

\begin{align*} y^{\prime \prime }-4 y^{\prime }&=0 \end{align*}

With initial conditions

\begin{align*} y \left (0\right )&=13\\ y^{\prime }\left (0\right )&=0 \end{align*}

✓ Solution by Maple

Time used: 0.008 (sec). Leaf size: 5

dsolve([diff(y(t),t$2)-4*diff(y(t),t)=0,y(0) = 13, D(y)(0) = 0],y(t), singsol=all)
 

\[ y = 13 \]

✓ Solution by Mathematica

Time used: 0.011 (sec). Leaf size: 6

DSolve[{D[y[t],{t,2}]-4*D[y[t],t]==0,{y[0]==13,Derivative[1][y][0] ==0}},y[t],t,IncludeSingularSolutions -> True]
 

\[ y(t)\to 13 \]