js 计算器

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javaScript

F#JavaScript Microsoft

科学计算器

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<HTML><HEAD><TITLE>科学计算器</TITLE>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<STYLE>BODY {
BACKGROUND-ATTACHMENT: fixed; BACKGROUND-COLOR: #edf0e1; COLOR: #0001fc; FONT-FAMILY: "宋体", "Arial", "Times New Roman"; FONT-SIZE: 9pt
}
TD {
FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZE: 9pt; font-color: #000000
}
</STYLE>

<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>

<META content="Microsoft FrontPage 4.0" name=GENERATOR></HEAD>
<BODY>
<DIV align=center>
<FORM name=calc>
<TABLE border=1 height=250 width=500>
<TBODY>
<TR>
    <TD height=50>
      <TABLE width=500>
        <TBODY>
        <TR>
          <TD></TD>
          <TD>
            <DIV align=center><INPUT name=display readOnly size=40 value=0>
            </DIV></TD></TR></TBODY></TABLE></TD></TR>
<TR>
    <TD>
      <TABLE width=500>
        <TBODY>
        <TR>
          <TD width=290><INPUT name=carry onclick=inputChangCarry(16)
            type=radio> 十六进制 <INPUT CHECKED name=carry
            onclick=inputChangCarry(10) type=radio> 十进制 <INPUT name=carry
            onclick=inputChangCarry(8) type=radio> 八进制 <INPUT name=carry
            onclick=inputChangCarry(2) type=radio> 二进制 </TD>
          <TD></TD>
          <TD width=135><INPUT CHECKED name=angle
            onclick="inputChangAngle('d')" type=radio value=d> 角度制 <INPUT
            name=angle onclick="inputChangAngle('r')" type=radio value=r> 弧度制
        </TD></TR></TBODY></TABLE>
      <TABLE width=500>
        <TBODY>
        <TR>
          <TD width=170><INPUT name=shiftf onclick=inputshift()
            type=checkbox>上档功能 <INPUT name=hypf onclick=inputshift()
            type=checkbox>双曲函数 </TD>
          <TD><INPUT name=bracket readOnly size=3
            style="BACKGROUND-COLOR: lightgrey"> <INPUT name=memory readOnly
            size=3 style="BACKGROUND-COLOR: lightgrey"> <INPUT name=operator
            readOnly size=3 style="BACKGROUND-COLOR: lightgrey"> </TD>
          <TD width=183><INPUT onclick=backspace() style="COLOR: red" type=button value=" 退格 ">
<INPUT onclick="document.calc.display.value = 0 " style="COLOR: red" type=button value=" 清屏 ">
<INPUT onclick=clearall() style="COLOR: red" type=button value=" 全清">
          </TD></TR></TBODY></TABLE>
      <TABLE width=500>
        <TBODY>
        <TR>
          <TD>
            <TABLE>
              <TBODY>
              <TR align=middle>
                <TD><INPUT name=pi onclick="inputfunction('pi','pi')" style="COLOR: blue" type=button value=" PI ">
                </TD>
                <TD><INPUT name=e onclick="inputfunction('e','e')" style="COLOR: blue" type=button value=" E ">
                </TD>
                <TD><INPUT name=bt onclick="inputfunction('dms','deg')" style="COLOR: #ff00ff" type=button value=d.ms>
                </TD></TR>
              <TR align=middle>
                <TD><INPUT onclick=addbracket() style="COLOR: #ff00ff" type=button value=" ( ">
                </TD>
                <TD><INPUT onclick=disbracket() style="COLOR: #ff00ff" type=button value=" ) ">
                </TD>
                <TD><INPUT name=ln onclick="inputfunction('ln','exp')" style="COLOR: #ff00ff" type=button value=" ln ">
                </TD></TR>
              <TR align=middle>
                <TD><INPUT name=sin onclick="inputtrig('sin','arcsin','hypsin','ahypsin')" style="COLOR: #ff00ff" type=button value="sin ">
                </TD>
                <TD><INPUT onclick="operation('^',7)" style="COLOR: #ff00ff" type=button value="x^y ">
                </TD>
                <TD><INPUT name=log onclick="inputfunction('log','expdec')" style="COLOR: #ff00ff" type=button value="log ">
                </TD></TR>
              <TR align=middle>
                <TD><INPUT name=cos onclick="inputtrig('cos','arccos','hypcos','ahypcos')" style="COLOR: #ff00ff" type=button value="cos ">
                </TD>
                <TD><INPUT name=cube onclick="inputfunction('cube','cubt')" style="COLOR: #ff00ff" type=button value="x^3 ">
                </TD>
                <TD><INPUT onclick="inputfunction('!','!')" style="COLOR: #ff00ff" type=button value=" n! ">
                </TD></TR>
              <TR align=middle>
                <TD><INPUT name=tan onclick="inputtrig('tan','arctan','hyptan','ahyptan')" style="COLOR: #ff00ff" type=button value="tan ">
                </TD>
                <TD><INPUT name=sqr onclick="inputfunction('sqr','sqrt')" style="COLOR: #ff00ff" type=button value="x^2 ">
                </TD>
                <TD><INPUT onclick="inputfunction('recip','recip')" style="COLOR: #ff00ff" type=button value="1/x ">
                </TD></TR></TBODY></TABLE></TD>
          <TD width=30></TD>
          <TD>
            <TABLE>
              <TBODY>
              <TR>
                <TD><INPUT onclick=putmemory() style="COLOR: red" type=button value=" 储存 ">
                </TD></TR>
              <TR>
                <TD><INPUT onclick=getmemory() style="COLOR: red" type=button value=" 取存 ">
                </TD></TR>
              <TR>
                <TD><INPUT onclick=addmemory() style="COLOR: red" type=button value=" 累存 ">
                </TD></TR>
              <TR>
                <TD><INPUT onclick=multimemory() style="COLOR: red" type=button value=" 积存 ">
                </TD></TR>
              <TR>
                <TD height=33><INPUT onclick=clearmemory() style="COLOR: red" type=button value=" 清存 ">
                </TD></TR></TBODY></TABLE></TD>
          <TD width=30></TD>
          <TD>
            <TABLE>
              <TBODY>
              <TR align=middle>
                <TD><INPUT name=k7 onclick="inputkey('7')" style="COLOR: blue" type=button value=" 7 ">
                </TD>
                <TD><INPUT name=k8 onclick="inputkey('8')" style="COLOR: blue" type=button value=" 8 ">
                </TD>
                <TD><INPUT name=k9 onclick="inputkey('9')" style="COLOR: blue" type=button value=" 9 ">
                </TD>
                <TD><INPUT onclick="operation('/',6)" style="COLOR: red" type=button value=" / ">
                </TD>
                <TD><INPUT onclick="operation('%',6)" style="COLOR: red" type=button value=取余>
                </TD>
                <TD><INPUT onclick="operation('&',3)" style="COLOR: red" type=button value=" 与 ">
                </TD></TR>
              <TR align=middle>
                <TD><INPUT name=k4 onclick="inputkey('4')" style="COLOR: blue" type=button value=" 4 ">
                </TD>
                <TD><INPUT name=k5 onclick="inputkey('5')" style="COLOR: blue" type=button value=" 5 ">
                </TD>
                <TD><INPUT name=k6 onclick="inputkey('6')" style="COLOR: blue" type=button value=" 6 ">
                </TD>
                <TD><INPUT onclick="operation('*',6)" style="COLOR: red" type=button value=" * ">
                </TD>
                <TD><INPUT name=floor onclick="inputfunction('floor','deci')" style="COLOR: red" type=button value=取整>
                </TD>
                <TD><INPUT onclick="operation('|',1)" style="COLOR: red" type=button value=" 或 ">
                </TD></TR>
              <TR align=middle>
                <TD><INPUT onclick="inputkey('1')" style="COLOR: blue" type=button value=" 1 ">
                </TD>
                <TD><INPUT name=k2 onclick="inputkey('2')" style="COLOR: blue" type=button value=" 2 ">
                </TD>
                <TD><INPUT name=k3 onclick="inputkey('3')" style="COLOR: blue" type=button value=" 3 ">
                </TD>
                <TD><INPUT onclick="operation('-',5)" style="COLOR: red" type=button value=" - ">
                </TD>
                <TD><INPUT onclick="operation('<',4)" style="COLOR: red" type=button value=左移>
                </TD>
                <TD><INPUT onclick="inputfunction('~','~')" style="COLOR: red" type=button value=" 非 ">
                </TD></TR>
              <TR align=middle>
                <TD><INPUT onclick="inputkey('0')" style="COLOR: blue" type=button value=" 0 ">
                </TD>
                <TD><INPUT onclick=changeSign() style="COLOR: blue" type=button value=+/->
                </TD>
                <TD><INPUT name=kp onclick="inputkey('.')" style="COLOR: blue" type=button value=" . ">
                </TD>
                <TD><INPUT onclick="operation('+',5)" style="COLOR: red" type=button value=" + ">
                </TD>
                <TD><INPUT onclick=result() style="COLOR: red" type=button value=" ＝ ">
                </TD>
                <TD><INPUT onclick="operation('x',2)" style="COLOR: red" type=button value=异或>
                </TD></TR>
              <TR align=middle>
                <TD><INPUT disabled name=ka onclick="inputkey('a')" style="COLOR: blue" type=button value=" A ">
                </TD>
                <TD><INPUT disabled name=kb onclick="inputkey('b')" style="COLOR: blue" type=button value=" B ">
                </TD>
                <TD><INPUT disabled name=kc onclick="inputkey('c')" style="COLOR: blue" type=button value=" C ">
                </TD>
                <TD><INPUT disabled name=kd onclick="inputkey('d')" style="COLOR: blue" type=button value=" D ">
                </TD>
                <TD><INPUT disabled name=ke onclick="inputkey('e')" style="COLOR: blue" type=button value=" E">
                </TD>
                <TD><INPUT disabled name=kf onclick="inputkey('f')" style="COLOR: blue" type=button value=" F">
                </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></FORM></DIV></BODY></HTML>

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js 计算器(二) | Error: could not find java 2 Runtime Env ...

2009-12-21 11:17
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