X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/dep-ui/blobdiff_plain/ac26861cd2097171f4f61adf7277af93c7094b16..c6150f2f930c56ba8d3264f0cc5b9321b9b29d54:/rolling.html

diff --git a/rolling.html b/rolling.html
index fbee44e..b4656a2 100644
--- a/rolling.html
+++ b/rolling.html
@@ -12,6 +12,7 @@
 
 <h1>Rolling wire-strip calculator</h1>
 
+<div id=trace style="white-space: pre"></div>
 <script type="text/javascript"><!--
 --></script>
 
@@ -171,6 +172,9 @@ roll down to the required thickness of strip.
 
 <p>For best results, roll the strip in as few passes as you can handle.
 
+<p>You can see the <a href="rolling-eqn.html">detailed equations</a>
+used for this calculation if you're interested.
+
 <h3>Use</h3>
 
 <p>Boxes with light red or white backgrounds are entry boxes for you to
@@ -183,6 +187,36 @@ calculator can&rsquo;t understand what you&rsquo;ve typed in an input
 box, or it&rsquo;s hit trouble &ndash; usually this means that some
 necessary input is missing.
 
+<p>You specify the width and thickness of the strip you want, and the
+program calculates what size round or square wire you should start with.
+Additionally, if you specify the length of strip you need, it will
+calculate the length of the input wire.
+
+<p>You can use whatever units you like, as long as they are consistent,
+but you cannot use wire gauges.  If you use millimetres, the results
+will be in millimetres; if you use inches, the results will be in
+inches.  Whatever you use, the results are displayed to only 3 decimal
+places.
+
+<h3>Code and credits</h3>
+
+<p>The code which makes this page work
+is <a href="http://www.gnu.org/philosophy/free-sw.html">free
+software</a>.  You
+can <a href="http://git.distorted.org.uk/~mdw/dep-ui/">browse or download
+it</a>, modify it, and/or redistribute it under the terms of the
+<a href="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html">GNU
+General Public License, version 2</a> or, at your option, any later
+version.
+
+<p>If you make interesting changes, I&rsquo;d be very grateful to know
+about them.  Please <a href="mailto:mdw@distorted.org.uk">mail me
+patches</a>.
+
+<p>The JavaScript machinery on this page was written by Mark Wooding;
+the text was written by Mark Wooding and Gary Wooding.  The data used
+to derive the computation was provided by Gary Wooding.
+
 </div>
 </body>
 </html>