反符号计算器！

noivan · 发表于 2011-1-25 13:19:25

http://ddrive.cs.dal.ca/~isc/standard.html

疯不狂 · 发表于 2011-1-25 13:21:01

输入普通数字他反而不能显示……

noivan · 发表于 2011-1-25 13:38:41

输入普通数字他反而不能显示……
疯不狂发表于 2011-1-25 13:21

针对一些运算结果设计，不妨尝试3.141592653589793 和 0.1028

h19950115 · 发表于 2011-1-25 18:25:42

着东西不错，牛顿法硬算出来的解终于可以写到作业上了

imath · 发表于 2011-1-25 18:58:39

类似于2D-Math,说不定2D-Math效率更高.
尤其是带上模糊算法后

chsi · 发表于 2011-1-25 19:00:24

是的，要是能移植到图形计算器上就好了。

diameter · 发表于 2011-1-25 19:05:54

很强大的算法啊！！恢复的效果真是…………………………

lch · 发表于 2011-1-27 10:43:54

恢复效果确实不错！~

zhj · 发表于 2011-1-27 11:23:58

为什么看不到源代码？网页上貌似没什么javaｓｃｒｉｐｔ

l5h5t7 · 发表于 2011-1-28 12:11:03

不错，强势收藏。

Cyvre · 发表于 2011-1-28 18:17:31

为什么看不到源代码？网页上貌似没什么javaｓｃｒｉｐｔ
zhj 发表于 2011-1-27 11:23

用这个http://www.linkwan.com/gb/broadmeter/tools/viewsource.htm
我看不太懂，不知道到底有没有价值

lch · 发表于 2011-1-28 18:26:27

11# Cyvre

试了下

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>Inverse Symbolic Calculator</title>
<ｓｃｒｉｐｔ type="text/javaｓｃｒｉｐｔ" src="clean-all.js"></ｓｃｒｉｐｔ>
<ｓｃｒｉｐｔ type="text/javaｓｃｒｉｐｔ" charset="utf-8">
function get(url, consumer, progress_bar, cache){
var message = Clean.createSimpleMessage(url, consumer, error);
if(cache != null)
message.cache = cache;
if(progress_bar != null){
var progress = new EmbeddedProgressBar(document, progress_bar);
message.progressBar = progress;
}
Clean.doGet(message);
}
function send_request(){
var user_input = document.getElementById("user_input");
document.getElementById("results_go_here").innerHTML="<div id='load_text'>Chug chug chug...</div>"
get('submit_std.php?user_input='+ user_input.value.replace(/\+/g,"%2B") ,'results_go_here','progress');
}
function error(){
alert("Javaｓｃｒｉｐｔ decided there was an error.");
}
function try_it_out(num){
document.getElementById("user_input").value=num;
send_request();
}
function start(){
var number = gup('number');
if (number != "" ){
document.getElementById("user_input").value=number;
send_request();
}
}
function set_default(){
document.getElementById("results_go_here").innerHTML= " "
+"<p>Here are some fun numbers to try:</p>"
+"<p><b>5.85987448204884</b> <a onClick='try_it_out(5.85987448204884)'>[try it]</a></p>"
+"<p><b>3.146264370</b> <a onClick='try_it_out(3.146264370)'>[try it]</a></p>"
+"<p><b>19.999099979189475768</b> <a onClick='try_it_out(19.999099979189475768)'>[try it]</a></p>";
}
function gup( name ){ // get url paras
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return "";
else
return results[1];
}
</ｓｃｒｉｐｔ>
<link rel="stylesheet" href="style.css" type="text/css" media="screen" title="stylesheet" charset="utf-8">
</head>
<body onLoad="set_default();start();">
<div id="main2">
<div class="bgImg"></div>
<div id="main">
<div class="right bar">
<p> The ISC presently accepts either floating point expressions or correct Maple syntax as input. However, for Maple syntax requiring too long for evaluation, a timeout has been implemented.<p>
</div>
<div class="left bar">
<!--<p>The Inverse Symbolic Calculator, or ISC, is a tool that will try to detect a closed
form approximation of a decimal number. It is largely magical, and the inner workings
of it are known only to the most high of the math sages.</p>-->
<p>The Inverse Symbolic Calculator (ISC) uses a combination of lookup tables and integer relation algorithms in order to associate with a user-defined, truncated decimal expansion (represented as a floating point expression) a closed form representation for the real number.</p>
</div>
<div class="sponsor_div">
<img src="images/ddrive.png" class='sponsor' alt="ddrive" title="ddrive" />
<img src="images/nserc.png" class='sponsor' alt="nserc" title="nserc" />
<img src="images/maplesoft.png" class='sponsor' alt="maplesoft" title="maplesoft" />
</div>
<h1><a href='index.html'>Inverse Symbolic Calculator</a></h1>
<div id='form'>
<form method="get" accept-charset="utf-8" id="isc" onSubmit="return false;">
<input type="text" name="user_input" value="" id="user_input" size="40">
<input type="button"
value="Inverse Calculate!"
onClick="send_request();">
</form>
</div>
<div id="progress_bar_spot"><img id="progress" src="images/gloos.gif" style="display:none" /></div>
<div id="results_go_here">
</div>
<div id="footer">
<img src="images/oldISC.gif" alt="Original ISC" title="Original ISC" /> <a href="The'>http://oldweb.cecm.sfu.ca/projects/ISC/ISCmain.html">The original ISC</a>
</div>
</div>
</div>
</body>
</html>

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谁来解释下什么意思？？？？

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