<html><head><title>[xgap] 1 How to read this manual</title></head> <body text="#000000" bgcolor="#ffffff"> [<a href = "chapters.htm">Up</a>] [<a href ="C002S000.htm">Next</a>] [<a href = "theindex.htm">Index</a>] <h1>1 How to read this manual</h1><p> <p> This chapter tells you exactly, which part of this manual you have to read if you want to learn certain things about XGAP. <p> If you do not know anything about XGAP you might want to have a look at chapter <a href="../../xgap/htm/C002S000.htm">xgap:What is XGAP?</a>. You can learn there, what XGAP is all about, what you can do with it as a user (doing no programming) and for what you can use XGAP within your own programs. You find also references to other sections of this manual to get into the details. <p> If you want to know how to install XGAP, then you should look into chapter <a href="../../xgap/htm/C003S000.htm">xgap:Installing XGAP</a>. <p> If you know XGAP from its <font face="Gill Sans,Helvetica,Arial">GAP</font>3 version, you will consider chapter <a href="../../xgap/htm/C010S000.htm">xgap:Differences to XGAP 3</a> useful. There you can quickly ``update'' your knowledge to the new <font face="Gill Sans,Helvetica,Arial">GAP</font>4 version and also find some technical details about the implementation, which is nearly completely new. <p> Perhaps you know already, that you can display subgroup lattices interactively with XGAP and you want to start with this right now. In this case, jump to chapters <a href="../../xgap/htm/C004S000.htm">xgap:Subgroup Lattices - Examples</a> and <a href="../../xgap/htm/C005S000.htm">xgap:Subgroup Lattices - systematic description</a> immediately. However, you should make sure first that you have a working XGAP installed! <p> The XGAP library is described in these and the remaining chapters of this manual. The information is divided into the following parts: <p> <dl compact> <dt><strong>subgroup lattices - examples</strong> <dd> <p> <dt><strong>subgroup lattices - systematic description</strong> <dd> <p> <dt><strong>graphic sheets</strong> <dd> Creating and managing graphic sheets and graphic objects. This is the lowest level. <p> <dt><strong>user communication</strong> <dd> Handling of menus, dialogs, text selectors and popups. <p> <dt><strong>graphic posets</strong> <dd> Display of posets in graphic sheets. <p> <dt><strong>graphic graphs</strong> <dd> Display of mathematical graphs in graphic sheets. A lot of ``routine work'' for handling these things is already done and can be used in your applications! </dl> There is a chapter for each of these parts. <p> <p> [<a href = "chapters.htm">Up</a>] [<a href ="C002S000.htm">Next</a>] [<a href = "theindex.htm">Index</a>] <P> <address>xgap manual<br>Mai 2003 </address></body></html>