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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>最大風險計算</title>
<script language="javascript">
function calc()
{
var v1 = parseFloat( document.getElementById('v1').value );
var v2 = parseFloat( document.getElementById('v2').value );
var v3 = parseFloat( document.getElementById('v3').value );
var v31 = v2/(v1+v2);
var v32 = v1/(v1+v2);
var v4 = Math.sqrt(v3*v1*v2)*5;
var v5 = v4/0.3048;
var str = '';
str += '若勝率大於：' + v31+'</br>';
str += '才可以' + '</br>';
str += '期望值大於0' + '</br>';
str += '最大風險小於：' + v4+'元</br>';
document.getElementById('message').innerHTML = str;
}
</script>
<script language="javascript">
function calc2()
{
var v1 = parseFloat( document.getElementById('v11').value );
var v11 = parseFloat( document.getElementById('v111').value );
var v2 = parseFloat( document.getElementById('v12').value );
var v3 = parseFloat( document.getElementById('v13').value );
var v30 = v1/v11;
var v31 = v2/v30-v2;
var v4 = Math.sqrt(v3*v30-v3*v30*v30)*(v31+v2)*5;
var v5 = v4/0.3048;
var str = '';
str += '若贏錢金額大於：' + v31+'元</br>';
str += '才可以' + '</br>';
str += '期望值大於0' + '</br>';
str += '最大風險小於：' + v4+'元</br>';
document.getElementById('message2').innerHTML = str;
}
</script>
<script>
function show_now()
{
var w = new Array('日', '一', '二', '三', '四', '五', '六');
var today = new Date();
var str = '';
str += today.getFullYear() + '年';
str += (today.getMonth()+1) + '月';
str += today.getDate() + '日';
str += '星期' + w[today.getDay()];
str += today.getHours() + '時';
str += today.getMinutes() + '分';
str += today.getSeconds() + '秒';
str += today.getMilliseconds()+ '毫秒'
document.getElementById('show_area').innerHTML = str;
setTimeout("show_now()", 1);
}
</script>
<script>setTimeout("show_now()", 1);</script>
</head>
<body><br />
<p>現在時間：<span id="show_area"></span></p>
<br />
<h2>最大風險計算(未知勝率)</h2><br />
<p><br />
贏錢金額：<input type="text" name="v1" id="v1" size="10" value="1"/> 元 <br /><br /><br />
<br />
輸錢金額：<input type="text" name="v2" id="v2" size="10" value="1"/> 元 <br /><br /><br />
<br />
交易次數：<input type="text" name="v3" id="v3" size="10" value="10000"/> 次 <br /><br /><br />
<br />
<input type="button" value="分析" onclick="calc();" /><br />
<br />
</p><br />
<p><span id="message">請輸入你的資料</span></p><p><span id="test1"></span></p><p><span id="test2"></span></p><br />
</body><br />
<br />
<body>
<br />
<h2>最大風險計算(未知贏錢金額)</h2><br />
<p><br />
贏錢機率：<input type="text" name="v1" id="v11" size="10" value="0.5"/> / <input type="text" name="v111" id="v111" size="10" value="1"/> <br /><br /><br />
<br />
輸錢金額：<input type="text" name="v2" id="v12" size="10" value="1"/> 元 <br /><br /><br />
<br />
交易次數：<input type="text" name="v3" id="v13" size="10" value="10000"/> 次 <br /><br /><br />
<br />
<input type="button" value="分析" onclick="calc2();" /><br />
<br />
</p><br />
<p><span id="message2">請輸入你的資料</span></p><p><span id="test1"></span></p><p><span id="test2"></span></p><br />
</body><br />
</html>
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