<html>
<head>
<title>Rolling wire-strip calculator</title>
- <script type="text/javascript" src="dep.js"></script>
- <script type="text/javascript" src="dep-ui.js"></script>
+ <meta name=viewport content="width=device-width initial-scale=1.0">
<link rel=stylesheet type="text/css" href="dep-ui.css">
<link rel=stylesheet type="text/css" href="rolling.css">
+ <script type="text/javascript" src="dep.js"></script>
+ <script type="text/javascript" src="dep-ui.js"></script>
<head>
<body>
<h1>Rolling wire-strip calculator</h1>
+<div id=trace style="white-space: pre"></div>
<script type="text/javascript"><!--
--></script>
DEP_UI.add_elt_class(DEP_UI.elt('js-note'), 'conceal');
--></script>
<p>This page is only really interesting because it contains a Javascript
-program. You seem to have Javascript turned off, so it won't work very
-well.
+program. You seem to have Javascript turned off, so it won’t work very
+well. It only requires first-party scripts;
+see <a href="#privacy">Privacy</a> for more details.
</div>
<h3>Background</h3>
roll down to the required thickness of strip.
<p>For best results, roll the strip in as few passes as you can handle.
+The results aren’t accurate for broad, thin strips.
+Width-to-thickness ratios of up to 6:1 are known to be good; ratios of
+12:1 or more don't work: strips don’t get as wide as predicted by
+our model. We need to collect more data and construct a better model to
+handle this case properly.
+
+<p>You can see the <a href="rolling-eqn.html">detailed equations</a>
+used for this calculation if you’re interested.
<h3>Use</h3>
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="https://www.gnu.org/philosophy/free-sw.html">free
+software</a>. You
+can <a href="https://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="https://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’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.
+
+<h3 id="privacy">Privacy</h3>
+
+<p>There are no cookies or other trackers here. This page does not use
+externally hosted scripts, fonts, images, or anything else. The server
+has logged your IP address, which helps me fix things if they go wrong;
+mostly things work fine and the logs are discarded after a couple of
+weeks.
+
+<p>Most web browsers can save a version of this page which can be used
+offline.
+
</div>
</body>
</html>