[收藏]个人助理-计算器

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">

</style>
<style type="text/css">

</style>
<style type="text/css">

</style>
</head>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<title>个人助理-计算器</title>
<style>
body,td {font-size:12px;}
.b1 {
font-family: "宋体";
font-size: 12px;
color: #313596;
background-color: #FBFBFB;
background-position: center;
border: 1px solid #B2B2B2;
height: 23px;
width: 43px;
}
.b2 {
font-size: 12px;
color: #FE3498;
background-color: #FBFBFB;
background-position: center;
border: 1px solid #B2B2B2;
height: 23px;
width: 43px;
}
.xn {
font-size: 12px;
color: #313398;
background-color: #FBFBFB;
background-position: center;
height: 23px;
width: 32px;
border: 1px solid #B2B2B2;
}
.dh {
font-size: 12px;
color: #868485;
background-color: #FBFBFB;
background-position: center;
height: 23px;
width: 40px;
border: 1px solid #B2B2B2;
}
.or {
font-size: 12px;
color: #FE6700;
height: 23px;
width: 40px;
background-color: #FBFBFB;
background-position: center;
border: 1px solid #B2B2B2;
}
.border {
border: 1px solid #B1BAC3;
}
</style>

//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>
</head>
<body>

<div align="center">个人助理-计算器
<form name=calc>
<table width="500" cellspacing="2">
<tr>
<td align="center">
<table width="490" height="45" cellspacing="0" class="border">
<tr>
<td width="26" align="center" bgcolor="#F1FAF1"> </td>
<td width="445" align="left" bgcolor="#F1FAF1">结果：  
<input type=text name="display" value="0" readonly size="40"></td>
</table>
</td>
</tr>
<tr>
<td align="center">
<table width="100%">
<tr>
<td>
<input type=radio name="carry" onClick="inputChangCarry(16)">
十六进制
<input type=radio name="carry" checked onClick="inputChangCarry(10)">
十进制
<input type=radio name="carry" onClick="inputChangCarry(8)">
八进制
<input type=radio name="carry" onClick="inputChangCarry(2)">
二进制
</td>
<td>
</td>
<td>
<input type=radio name="angle" value="d" onClick="inputChangAngle('d')" checked>
角度制
<input type=radio name="angle" value="r" onClick="inputChangAngle('r')">
弧度制
</td>
</tr>
</table>
<table width="100%" height="40" border="0" cellpadding="0" cellspacing="1">
<tr>
<td align="center">
<table width="100%">
<tr>
<td>
<input name="shiftf" type="checkbox" onclick="inputshift()">
上档功能
<input name="hypf" type="checkbox" onclick="inputshift()">
双曲函数 </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>
</td>
</tr>
</table>
<table width="100%" cellspacing="0">
<tr align="left">
<td width="29%">
<table cellpadding="1" cellspacing="1">
<tr align=center>
<td width="42" height="23"> <input name=pi type="button" class="b1"
onClick="inputfunction('pi','pi')" value=" PI "> </td>
<td width="42" height="23"> <input name=e type="button" class="b1"
onClick="inputfunction('e','e')" value=" E "> </td>
<td width="42" height="23"> <input name=bt type="button" class="b2"
onClick="inputfunction('dms','deg')" value="d.ms"> </td>
</tr>
<tr align=center>
<td width="42" height="23"> <input name="button" type="button" class="b2" style="color=#ff00ff"
onClick="addbracket()" value=" ( "> </td>
<td width="42" height="23"> <input name="button" type="button" class="b2"
onClick="disbracket()" value=" ) "> </td>
<td width="42" height="23"> <input name=ln type="button" class="b2"
onClick="inputfunction('ln','exp')" value=" ln "> </td>
</tr>
<tr align=center>
<td width="42" height="23"> <input name=sin type="button" class="b2"
onClick="inputtrig('sin','arcsin','hypsin','ahypsin')" value="sin "> </td>
<td width="42" height="23"> <input name="button" type="button" class="b2"
onClick="operation('^',7)" value="x^y "> </td>
<td width="42" height="23"> <input name=log type="button" class="b2"
onClick="inputfunction('log','expdec')" value="log "> </td>
</tr>
<tr align=center>
<td width="42" height="23"> <input name=cos type="button" class="b2"
onClick="inputtrig('cos','arccos','hypcos','ahypcos')" value="cos "> </td>
<td width="42" height="23"> <input name=cube type="button" class="b2"
onClick="inputfunction('cube','cubt')" value="x^3 "> </td>
<td width="42" height="23"> <input name="button" type="button" class="b2"
onClick="inputfunction('!','!')" value=" n! "> </td>
</tr>
<tr align=center>
<td width="42" height="23"> <input name=tan type="button" class="b2"
onClick="inputtrig('tan','arctan','hyptan','ahyptan')" value="tan "> </td>
<td width="42" height="23"> <input name=sqr type="button" class="b2"
onClick="inputfunction('sqr','sqrt')" value="x^2 "> </td>
<td width="42" height="23"> <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">
<tr>
<td width="65"> <input type="button" class="b3"
onClick="putmemory()" value=" 储存 "> </td>
</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" >
<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>
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