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在线科学计算器:提供加减乘除、开方、平方、根号等计算查询

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 <form name=calc>
 <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)
	right=todec(right,carry)
	if (join=="+")
		return(decto(parseFloat(left)+parseFloat(right),carry))
	if (join=="-")
		return(decto(left-right,carry))
	if (join=="*")
		return(decto(left*right,carry))
	if (join=="/" && right!=0)
		return(decto(left/right,carry))
	if (join=="%")
		return(decto(left%right,carry))
	if (join=="&")
		return(decto(left&right,carry))
	if (join=="|")
		return(decto(left|right,carry))
	if (join=="^")
		return(decto(Math.pow(left,right),carry))
	if (join=="x")
		return(decto(left^right,carry))
	if (join=="<")
		return(decto(left<<right,carry))
	alert("除数不能为零")
	return(left)
}

//函数计算

function funcalc(fun,num)
{
	with(Math)
	{
		if (fun=="pi")
			return(PI)
		if (fun=="e")
			return(E)

		if (fun=="abs")
			return(abs(num))
		if (fun=="ceil")
			return(ceil(num))
		if (fun=="round")
			return(round(num))

		if (fun=="floor")
			return(floor(num))
		if (fun=="deci")
			return(num-floor(num))


		if (fun=="ln" && num>0)
			return(log(num))
		if (fun=="exp")
			return(exp(num))
		if (fun=="log" && num>0)
			return(log(num)*LOG10E)
		if (fun=="expdec")
			return(pow(10,num))

		
		if (fun=="cube")
			return(num*num*num)
		if (fun=="cubt")
			return(pow(num,1/3))
		if (fun=="sqr")
			return(num*num)
		if (fun=="sqrt" && num>=0)
			return(sqrt(num))

		if (fun=="!")
			return(factorial(num))

		if (fun=="recip" && num!=0)
			return(1/num)
		
		if (fun=="dms")
			return(dms(num))
		if (fun=="deg")
			return(deg(num))

		if (fun=="~")
			return(~num)
	
		if (angle=="d")
		{
			if (fun=="sin")
				return(sin(degressToRadians(num)))
			if (fun=="cos")
				return(cos(degressToRadians(num)))
			if (fun=="tan")
				return(tan(degressToRadians(num)))

			if (fun=="arcsin" && abs(num)<=1)
				return(radiansToDegress(asin(num)))
			if (fun=="arccos" && abs(num)<=1)
				return(radiansToDegress(acos(num)))
			if (fun=="arctan")
				return(radiansToDegress(atan(num)))
		}
		else
		{
			if (fun=="sin")
				return(sin(num))
			if (fun=="cos")
				return(cos(num))
			if (fun=="tan")
				return(tan(num))

			if (fun=="arcsin" && abs(num)<=1)
				return(asin(num))
			if (fun=="arccos" && abs(num)<=1)
				return(acos(num))
			if (fun=="arctan")
				return(atan(num))
		}
	
		if (fun=="hypsin")
			return((exp(num)-exp(0-num))*0.5)
		if (fun=="hypcos")
			return((exp(num)+exp(-num))*0.5)
		if (fun=="hyptan")
			return((exp(num)-exp(-num))/(exp(num)+exp(-num)))

		if (fun=="ahypsin" | fun=="hypcos" | fun=="hyptan")
		{
			alert("对不起,公式还没有查到!")
			return(num)
		}
		
		alert("超出函数定义范围")
		return(num)
	}
}

function factorial(n)
{
	n=Math.abs(parseInt(n))
	var fac=1
	for (;n>0;n-=1)
		fac*=n
	return(fac)
}

function dms(n)
{
	var neg=(n<0)
	with(Math)
	{	
		n=abs(n)
		var d=floor(n)
		var m=floor(60*(n-d))
		var s=(n-d)*60-m
	}
	var dms=d+m/100+s*0.006
	if (neg) 
		dms=-dms


	return(dms)
}

function deg(n)
{
	var neg=(n<0)
	with(Math)
	{
		n=abs(n)
		var d=floor(n)
		var m=floor((n-d)*100)
		var s=(n-d)*100-m
	}
	var deg=d+m/60+s/36
	if (neg) 
		deg=-deg
	return(deg)
}

function degressToRadians(degress)
{
	return(degress*Math.PI/180)
}

function radiansToDegress(radians)
{
	return(radians*180/Math.PI)
}

//界面

//-->
</script>
<table  align="center" cellspacing="2">
      <tr>
        <td align="center"><h1 align="center">在线科学计算器</h1>
          <table   height="45" cellspacing="0">
            <tr><td align="center" bgcolor="#E6F0FA"><input type="text" name="display" value="0" readonly size="40" class="inp"> <a onclick='display.select();document.execCommand("Copy")' href="#">复制结果</a></td></tr></table></td>
</tr>
<tr>
        <td align="center">
          <table width="100%"><tr><td><label><input type=radio name="carry" onClick="inputChangCarry(16)">十六进制</label> <label><input type=radio name="carry" checked onClick="inputChangCarry(10)">十进制</label> <label><input type=radio name="carry" onClick="inputChangCarry(8)">八进制</label> <label><input type=radio name="carry" onClick="inputChangCarry(2)">二进制</label></td>
<td></td><td><label><input type=radio name="angle" value="d" onClick="inputChangAngle('d')" checked="checked">角度制</label> <label><input type=radio name="angle" value="r" onClick="inputChangAngle('r')">弧度制</label></td></tr></table>
         <table width="100%">
                  <tr> 
                    <td><label><input name="shiftf" type="checkbox" onClick="inputshift()">上档功能</label> <label><input name="hypf" type="checkbox" onClick="inputshift()">双曲函数</label></td>
                    <td><input name="bracket" value="" type=text size=3 readonly style="background-color=lightgrey"> 
                      <input name="memory" value="" type=text size=3 readonly style="background-color=lightgrey"> 
                      <input name="operator" value="" type=text size=3 readonly style="background-color=lightgrey"></td>
                    <td align="right"> 
                      <input name="button2" type="button" class="b3" 
   onclick="backspace()" value=" 退格 "> <input name="button2" type="button" class="b3" 
   onClick="document.calc.display.value = 0 " value=" 清屏 "> <input name="button2" type="button" class="b3" 
   onClick="clearall()" value=" 全清"> </td>
                  </tr>
                </table>
          <table width="100%" cellspacing="0">
            <tr align="left"> 
              <td width="29%"> 
                <table cellpadding="1" cellspacing="1">
                  <tr align="center">
                    <td> <input name=pi type="button" class="b1" onClick="inputfunction('pi','pi')" value=" PI "> </td>
                    <td> <input name=e type="button" class="b1" onClick="inputfunction('e','e')" value=" E  "> </td>
                    <td> <input name=bt type="button" class="b2" onClick="inputfunction('dms','deg')" value="d.ms"> </td>
                  </tr>
                  <tr align="center">
                    <td> <input name="button"  type="button" class="b2" style="color=#ff00ff" onClick="addbracket()" value=" (  "> </td>
                    <td> <input name="button"  type="button" class="b2" onClick="disbracket()" value=" )  "> </td>
                    <td> <input name=ln type="button" class="b2" onClick="inputfunction('ln','exp')" value=" ln "> </td>
                  </tr>
                  <tr align="center">
                    <td> <input name=sin type="button" class="b2" onClick="inputtrig('sin','arcsin','hypsin','ahypsin')" value="sin "> </td>
                    <td> <input name="button"  type="button" class="b2" onClick="operation('^',7)" value="x^y "> </td>
                    <td> <input name=log type="button" class="b2" onClick="inputfunction('log','expdec')" value="log "> </td>
                  </tr>
                  <tr align="center">
                    <td> <input name=cos type="button" class="b2" onClick="inputtrig('cos','arccos','hypcos','ahypcos')" value="cos "> </td>
                    <td> <input name=cube type="button" class="b2" onClick="inputfunction('cube','cubt')" value="x^3 "> </td>
                    <td> <input name="button" type="button" class="b2" onClick="inputfunction('!','!')" value=" n! "> </td>
                  </tr>
                  <tr align="center">
                    <td> <input name=tan type="button" class="b2" onClick="inputtrig('tan','arctan','hyptan','ahyptan')" value="tan "> </td>
                    <td> <input name=sqr type="button" class="b2" onClick="inputfunction('sqr','sqrt')" value="x^2 "> </td>
                    <td> <input name="button"  type="button" class="b2" onClick="inputfunction('recip','recip')" value="1/x "> </td>
                  </tr>
                </table></td>
              <td width="38%"> 
                <table align="center" cellpadding="1" cellspacing="1">
                  <tr><td width="65"> <input type="button" class="b3" onClick="putmemory()" value=" 储存 "> </td></tr>
                  <tr><td> <input type="button" class="b3" onClick="getmemory()" value=" 取存 "> </td></tr>
                  <tr><td> <input type="button" class="b3" onClick="addmemory()" value=" 累存 "> </td></tr>
                  <tr><td> <input type="button" class="b3" onClick="multimemory()" value=" 积存 "> </td></tr>
                  <tr><td> <input type="button" class="b3" onClick="clearmemory()" value=" 清存 "> </td></tr>
                </table></td>
              <td width="33%" align="right"> 
                <table cellpadding="1" cellspacing="1">
                  <tr align="center">
                    <td > <input name=k7 type="button" value=" 7 " onClick="inputkey('7')" class="xn" ></td>
                    <td  > <input name=k8 type="button" class="xn" value=" 8 " onClick="inputkey('8')" > </td>
                    <td> <input name=k9 type="button" class="xn" value=" 9 " onClick="inputkey('9')" > </td>
                    <td> <input type="button" class="xo" onClick="operation('/',6)" value=" / "> </td>
                    <td> <input type="button" class="or" onClick="operation('%',6)" value="取余"> </td>
                    <td> <input type="button" class="or" onClick="operation('&',3)" value=" 与 "> </td>
                  </tr>
                  <tr align="center">
                    <td > <input name=k4 type="button"  class="xn" value=" 4 " onClick="inputkey('4')" > </td>
                    <td> <input name=k5 type="button" class="xn" value=" 5 " onClick="inputkey('5')" > </td>
                    <td > <input name=k6 type="button" class="xn" value=" 6 " onClick="inputkey('6')" > </td>
                    <td> <input type="button" class="xo" onClick="operation('*',6)" value=" * "> </td>
                    <td> <input name=floor type="button" class="or" onClick="inputfunction('floor','deci')" value="取整"> </td>
                    <td> <input type="button" class="or" onClick="operation('|',1)" value=" 或 "> </td>
                  </tr>
                  <tr align="center">
                    <td > <input type="button" value=" 1 " onClick="inputkey('1')" class="xn" > </td>
                    <td > <input name=k2 type="button" value=" 2 " onClick="inputkey('2')"  class="xn"> </td>
                    <td > <input name=k3 type="button" class="xn" value=" 3 " onClick="inputkey('3')" > </td>
                    <td> <input type="button" class="xo" onClick="operation('-',5)" value=" - "> </td>
                    <td> <input type="button" class="or" onClick="operation('<',4)" value="左移"> </td>
                    <td> <input type="button" class="or" onClick="inputfunction('~','~')" value=" 非 "> </td>
                  </tr>
                  <tr align="center">
                    <td > <input type="button" value=" 0 " onClick="inputkey('0')" class="xn"> </td>
                    <td > <input type="button" value="+/-" onClick="changeSign()" class="xn"> </td>
                    <td > <input name=kp type="button" value=" . " onClick="inputkey('.')" class="xn" > </td>
                    <td> <input type="button" class="xo" 
  onClick="operation('+',5)" value=" + "> </td>
                    <td> <input type="button" class="or" onClick="result()" value=" = "> </td>
                    <td> <input type="button" class="or" onClick="operation('x',2)" value="异或"> </td>
                  </tr>
                  <tr align="center">
                    <td> <input name=ka type="button" disabled=true class="b4" onClick="inputkey('a')" value=" A "> </td>
                    <td> <input name=kb type="button" disabled=true class="b4" onClick="inputkey('b')" value=" B "> </td>
                    <td> <input name=kc type="button" disabled=true class="b4" onClick="inputkey('c')" value=" C "> </td>
                    <td> <input name=kd type="button" disabled=true class="b4" onClick="inputkey('d')" value=" D "> </td>
                    <td> <input name=ke type="button" disabled=true class="dh" onClick="inputkey('e')" value=" E "> </td>
                    <td> <input name=kf type="button" disabled=true class="dh" onClick="inputkey('f')" value=" F "> </td>
                  </tr>
                </table></td>
            </tr>
          </table></td>
</tr>
</table>

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<H2>在线计算器</H2><span style="float:right">欢迎在线使用 <a href="http://jisuanqi.118cha.com/">118在线计算机</a></span></DIV></DIV>
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<p><b>计算器</b>俗称“电子计算器”,用于进行统计计算和科学计算,不仅可进行加、减、乘、除等简单的四则运算,也可以进行开方计算,并且提供了累存和积存功能。
使用简单方便。<br>
  <b>简单计算</b>:四则运算、倒数等基础运算。<br>
  <b>函数计算</b>:正切、余切、正切等函数运算。<br>
  <b>科学计算</b>:可进行函数、对数运算,以及阶乘、幂运算等。<br>
  <b>数制的转换</b>:可进行十进制、二进制、八进制、十六进制整数的相互转换。
  <p>说明:加(+)、减(-)、乘(*)、除(/)、平方(x^2)、立方(x^3)、N次方(x^y)、开方根号(sqrt)、百分数(%)、倒数(1/x)等简单算术计算。

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WHOIS信息

  • 注册人:
    XU YONG
  • 注册邮箱:
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  • 注册商:
    ENOM, INC.
  • 创建时间:
    2010-02-23
  • 更新时间:
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  • 过期时间:
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