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<html>



<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type=text/css>
 td,body {  font-size: 13px;}body{
	margin-top:0px;
	margin-left:0px;
	margin-right:0px;
	background-color: #fcfff7;
} 
</style>
<title>SEORANK.COM.CN--智能计算器</title>

<SCRIPT language=javascript>
<!--
var endNumber=true
var mem=0
var carry=10
var hexnum="0123456789abcdef"
var angle="d"
var stack=""
var level="0"
var layer=0


//数字键

function inputkey(key)
{
	var index=key.charCodeAt(0);
	if ((carry==2 && (index==48 || index==49))
	 || (carry==8 && index>=48 && index<=55)
	 || (carry==10 && (index>=48 && index<=57 || index==46))
	 || (carry==16 && ((index>=48 && index<=57) || (index>=97 && index<=102))))
	if(endNumber)
	{
		endNumber=false
		document.calc.display.value = key
	}
	else if(document.calc.display.value == null || document.calc.display.value == "0")
		document.calc.display.value = key
	else
		document.calc.display.value += key
}

function changeSign()
{
    if (document.calc.display.value!="0")
    	if(document.calc.display.value.substr(0,1) == "-")
        	document.calc.display.value = document.calc.display.value.substr(1)
    	else
        	document.calc.display.value = "-" + document.calc.display.value
}

//函数键

function inputfunction(fun,shiftfun)
{
	endNumber=true
	if (document.calc.shiftf.checked)
		document.calc.display.value=decto(funcalc(shiftfun,(todec(document.calc.display.value,carry))),carry)
	else
		document.calc.display.value=decto(funcalc(fun,(todec(document.calc.display.value,carry))),carry)
	document.calc.shiftf.checked=false
	document.calc.hypf.checked=false	
	inputshift()
}

function inputtrig(trig,arctrig,hyp,archyp)
{
	if (document.calc.hypf.checked)
		inputfunction(hyp,archyp)
	else
		inputfunction(trig,arctrig)
}


//运算符

function operation(join,newlevel)
{
	endNumber=true
	var temp=stack.substr(stack.lastIndexOf("(")+1)+document.calc.display.value
	while (newlevel!=0 && (newlevel<=(level.charAt(level.length-1))))
	{
		temp=parse(temp)
		level=level.slice(0,-1)
	}
	if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/))
		document.calc.display.value=RegExp.$2
	stack=stack.substr(0,stack.lastIndexOf("(")+1)+temp+join
	document.calc.operator.value=" "+join+" "
	level=level+newlevel
	
}

//括号

function addbracket()
{
	endNumber=true
	document.calc.display.value=0
	stack=stack+"("
	document.calc.operator.value="   "
	level=level+0
	
	layer+=1
	document.calc.bracket.value="(="+layer
}

function disbracket()
{
	endNumber=true
	var temp=stack.substr(stack.lastIndexOf("(")+1)+document.calc.display.value
	while ((level.charAt(level.length-1))>0)
	{
		temp=parse(temp)
		level=level.slice(0,-1)
	}
	
	document.calc.display.value=temp
	stack=stack.substr(0,stack.lastIndexOf("("))
	document.calc.operator.value="   "
	level=level.slice(0,-1)

	layer-=1
	if (layer>0)
		document.calc.bracket.value="(="+layer
	else
		document.calc.bracket.value=""
}

//等号

function result()
{
	endNumber=true
	while (layer>0)
		disbracket()
	var temp=stack+document.calc.display.value
	while ((level.charAt(level.length-1))>0)
	{
		temp=parse(temp)
		level=level.slice(0,-1)
	}

	document.calc.display.value=temp
	document.calc.bracket.value=""
	document.calc.operator.value=""
	stack=""
	level="0"
}


//修改键

function backspace()
{
	if (!endNumber)
	{
		if(document.calc.display.value.length>1)
			document.calc.display.value=document.calc.display.value.substring(0,document.calc.display.value.length - 1)
		else
			document.calc.display.value=0
	}
}

function clearall()
{
	document.calc.display.value=0
	endNumber=true
	stack=""
	level="0"
	layer=""
	document.calc.operator.value=""
	document.calc.bracket.value=""
}


//转换键

function inputChangCarry(newcarry)
{
	endNumber=true
	document.calc.display.value=(decto(todec(document.calc.display.value,carry),newcarry))
	carry=newcarry

	document.calc.sin.disabled=(carry!=10)
	document.calc.cos.disabled=(carry!=10)
	document.calc.tan.disabled=(carry!=10)
	document.calc.bt.disabled=(carry!=10)
	document.calc.pi.disabled=(carry!=10)
	document.calc.e.disabled=(carry!=10)
	document.calc.kp.disabled=(carry!=10)
				
	document.calc.k2.disabled=(carry<=2)
	document.calc.k3.disabled=(carry<=2)
	document.calc.k4.disabled=(carry<=2)
	document.calc.k5.disabled=(carry<=2)
	document.calc.k6.disabled=(carry<=2)
	document.calc.k7.disabled=(carry<=2)
	document.calc.k8.disabled=(carry<=8)
	document.calc.k9.disabled=(carry<=8)
	document.calc.ka.disabled=(carry<=10)
	document.calc.kb.disabled=(carry<=10)
	document.calc.kc.disabled=(carry<=10)
	document.calc.kd.disabled=(carry<=10)
	document.calc.ke.disabled=(carry<=10)
	document.calc.kf.disabled=(carry<=10)

	
	
}

function inputChangAngle(angletype)
{
	endNumber=true
	angle=angletype
	if (angle=="d")
		document.calc.display.value=radiansToDegress(document.calc.display.value)
	else
		document.calc.display.value=degressToRadians(document.calc.display.value)
	endNumber=true
}

function inputshift()
{
	if (document.calc.shiftf.checked)
	{
		document.calc.bt.value="deg　"
		document.calc.ln.value="exp　"
		document.calc.log.value="expd "
		
		if (document.calc.hypf.checked)
		{
			document.calc.sin.value="ahs　"
			document.calc.cos.value="ahc　"
			document.calc.tan.value="aht　"
		}
		else
		{
			document.calc.sin.value="asin "
			document.calc.cos.value="acos "
			document.calc.tan.value="atan "
		}
		
		document.calc.sqr.value="x^.5 "
		document.calc.cube.value="x^.3 "
		
		document.calc.floor.value=" 小数 "
	}
	else
	{
		document.calc.bt.value="d.ms "
		document.calc.ln.value=" ln　"
		document.calc.log.value=" log "

		if (document.calc.hypf.checked)
		{
			document.calc.sin.value="hsin "
			document.calc.cos.value="hcos "
			document.calc.tan.value="htan "
		}
		else
		{
			document.calc.sin.value="sin　"
			document.calc.cos.value="cos　"
			document.calc.tan.value="tan　"
		}
		
		document.calc.sqr.value="x^2　"
		document.calc.cube.value="x^3　"
		
		document.calc.floor.value=" 取整 "
	}

}
//存储器部分

function clearmemory()
{
	mem=0
	document.calc.memory.value="   "
}

function getmemory()
{
	endNumber=true
	document.calc.display.value=decto(mem,carry)
}

function putmemory()
{
	endNumber=true
	if (document.calc.display.value!=0)
	{
		mem=todec(document.calc.display.value,carry)
		document.calc.memory.value=" M "
	}
	else
		document.calc.memory.value="   "
}

function addmemory()
{
	endNumber=true
	mem=parseFloat(mem)+parseFloat(todec(document.calc.display.value,carry))
	if (mem==0)
		document.calc.memory.value="   "
	else
		document.calc.memory.value=" M "
}

function multimemory()
{
	endNumber=true
	mem=parseFloat(mem)*parseFloat(todec(document.calc.display.value,carry))
	if (mem==0)
		document.calc.memory.value="   "
	else
		document.calc.memory.value=" M "
}

//十进制转换

function todec(num,oldcarry)
{
	if (oldcarry==10 || num==0) return(num)
	var neg=(num.charAt(0)=="-")
	if (neg) num=num.substr(1)
	var newnum=0
	for (var index=1;index<=num.length;index++)
		newnum=newnum*oldcarry+hexnum.indexOf(num.charAt(index-1))
	if (neg)
		newnum=-newnum
	return(newnum)
}

function decto(num,newcarry)
{
	var neg=(num<0)
	if (newcarry==10 || num==0) return(num)
	num=""+Math.abs(num)
	var newnum=""
	while (num!=0)
	{
		newnum=hexnum.charAt(num%newcarry)+newnum
		num=Math.floor(num/newcarry)
	}
	if (neg)
		newnum="-"+newnum
	return(newnum)
}

//表达式解析

function parse(string)
{
	if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/))
		return(RegExp.$1+cypher(RegExp.$2,RegExp.$3,RegExp.$4))
	else
		return(string)
}

//数学运算和位运算

function cypher(left,join,right)
{
	left=todec(left,carry)
12

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