5.7 problem 7

Internal problem ID [12347]

Book: Ordinary Differential Equations by Charles E. Roberts, Jr. CRC Press. 2010
Section: Chapter 2. The Initial Value Problem. Exercises 2.3.1, page 57
Problem number: 7.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_quadrature]

\[ \boxed {y^{\prime }=\frac {1}{x^{2}-1}} \] With initial conditions \begin {align*} [y \left (2\right ) = 1] \end {align*}

Solution by Maple

Time used: 0.016 (sec). Leaf size: 16

dsolve([diff(y(x),x)=1/(x^2-1),y(2) = 1],y(x), singsol=all)
 

\[ y \left (x \right ) = -\operatorname {arctanh}\left (x \right )+\operatorname {arctanh}\left (\frac {1}{2}\right )-\frac {i \pi }{2}+1 \]

Solution by Mathematica

Time used: 0.008 (sec). Leaf size: 28

DSolve[{y'[x]==1/(x^2-1),{y[2]==1}},y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {1}{2} (\log (3-3 x)-\log (x+1)-i \pi +2) \]