Date: Nov 6, 2013 7:16 PM
Author: Albert D. Rich
Subject: Re: The A. F. Timofeev symbolic integration test suite

I am currently transcribing the 109 integration examples in Chapter 8 of Timofeev's book.  However I am unable to figure out what Timofeev intended for examples #66 and #69 on page 366.  The integrands for #66 and #69 appear to be

(cosh(x)^2 - sinh(x)^3) / (cosh[x)^3 + sinh(x)^3)



respectively, but the antiderivatives shown for them are not valid. Can anybody out there help me out?