<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1251"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">On Feb 6, 2014, at 5:57 PM, Ross Moore <<a href="mailto:ross.moore@mq.edu.au">ross.moore@mq.edu.au</a>> wrote:<br><div><br class="Apple-interchange-newline"><blockquote type="cite"><div bgcolor="#FFFFFF" style="font-family: LucidaGrande; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div><br></div><div>Have a look at comment.sty and see whether this is suitable for your actual needs.</div><br></div></blockquote><br></div><div>I’ve been using the comments environment (as implemented in memoir) to show/hide texts. It allows me to print (a) homework problem + solution, or (b) homework problem only or (c) solution only. It’s worked nicely. </div><div><br></div><div>Themis</div><div><br></div><br></body></html>