📄 javascript实现的计算器.txt
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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>
<!--written by GoldHuman li hai-->
<!--2000.8-->
<div align="center"><a href="../index.html"><img src="../images/logo-voe.gif" width="400" height="40" border="0" alt="返回"></a>
<form name=calc>
<table border="1" width="500" height="250">
<tr>
<td height=50 bgcolor="#FFFFCC">
<table width=85%>
<td width="129" valign="middle" align="center" bgcolor="#FFFFCC">
<div align="right"><font size="4">计 算 器</font></div>
</td>
<td width="304">
<div align=center>
<input type=text name="display" value="0" readonly size="40">
</div>
</td>
</table>
</td>
</tr>
<tr>
<td>
<table width=524>
<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 width=159>
<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=524>
<tr>
<td width=170>
<input name="shiftf" type="checkbox" onClick="inputshift()">
上档功能
<input name="hypf" type="checkbox" onClick="inputshift()">
双曲函数 </td>
<td width="131">
<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 width=207>
<input type="button" value=" 退格 "
onClick="backspace()" style="color=red" name="button">
<input type="button" value=" 清屏 "
onClick="document.calc.display.value = 0 " style="color=red" name="button">
<input type="button" value=" 全清"
onClick="clearall()" style="color=red" name="button">
</td>
</tr>
</table>
<table width=500>
<tr>
<td>
<table>
<tr align=center>
<td>
<input name=pi type="button" value=" PI "
onClick="inputfunction('pi','pi')" style="color=blue">
</td>
<td>
<input name=e type="button" value=" E "
onClick="inputfunction('e','e')" style="color=blue">
</td>
<td>
<input name=bt type="button" value="d.ms"
onClick="inputfunction('dms','deg')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input type="button" value=" ( "
onClick="addbracket()" style="color=#ff00ff" name="button">
</td>
<td>
<input type="button" value=" ) "
onClick="disbracket()" style="color=#ff00ff" name="button">
</td>
<td>
<input name=ln type="button" value=" ln "
onClick="inputfunction('ln','exp')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=sin type="button" value="sin "
onClick="inputtrig('sin','arcsin','hypsin','ahypsin')" style="color=#ff00ff">
</td>
<td>
<input type="button" value="x^y "
onClick="operation('^',7)" style="color=#ff00ff" name="button">
</td>
<td>
<input name=log type="button" value="log "
onClick="inputfunction('log','expdec')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=cos type="button" value="cos "
onClick="inputtrig('cos','arccos','hypcos','ahypcos')" style="color=#ff00ff">
</td>
<td>
<input name=cube type="button" value="x^3 "
onClick="inputfunction('cube','cubt')" style="color=#ff00ff">
</td>
<td>
<input type="button" value=" n! "
onClick="inputfunction('!','!')" style="color=#ff00ff" name="button">
</td>
</tr>
<tr align=center>
<td>
<input name=tan type="button" value="tan "
onClick="inputtrig('tan','arctan','hyptan','ahyptan')" style="color=#ff00ff">
</td>
<td>
<input name=sqr type="button" value="x^2 "
onClick="inputfunction('sqr','sqrt')" style="color=#ff00ff">
</td>
<td>
<input type="button" value="1/x "
onClick="inputfunction('recip','recip')" style="color=#ff00ff" name="button">
</td>
</tr>
</table>
</td>
<td width=30> </td>
<td>
<table>
<tr>
<td>
<input type="button" value=" 储存 "
onClick="putmemory()" style="color=red" name="button">
</td>
</tr>
<td>
<input type="button" value=" 取存 "
onClick="getmemory()" style="color=red" name="button">
</td>
</tr>
<tr>
<td>
<input type="button" value=" 累存 "
onClick="addmemory()" style="color=red" name="button">
</td>
</tr>
<tr>
<td>
<input type="button" value=" 积存 "
onClick="multimemory()" style="color=red" name="button">
</td>
</tr>
<tr>
<td height="33">
<input type="button" value=" 清存 "
onClick="clearmemory()" style="color=red" name="button">
</td>
</tr>
</table>
</td>
<td width=30> </td>
<td>
<table>
<tr align=center>
<td>
<input name=k7 type="button" value=" 7 "
onClick="inputkey('7')" style="color=blue">
</td>
<td>
<input name=k8 type="button" value=" 8 "
onClick="inputkey('8')" style="color=blue">
</td>
<td>
<input name=k9 type="button" value=" 9 "
onClick="inputkey('9')" style="color=blue">
</td>
<td>
<input type="button" value=" / "
onClick="operation('/',6)" style="color=red" name="button">
</td>
<td>
<input type="button" value="取余"
onClick="operation('%',6)" style="color=red" name="button">
</td>
<td>
<input type="button" value=" 与 "
onClick="operation('&',3)" style="color=red" name="button">
</td>
</tr>
<tr align=center>
<td>
<input name=k4 type="button" value=" 4 "
onClick="inputkey('4')" style="color=blue">
</td>
<td>
<input name=k5 type="button" value=" 5 "
onClick="inputkey('5')" style="color=blue">
</td>
<td>
<input name=k6 type="button" value=" 6 "
onClick="inputkey('6')" style="color=blue">
</td>
<td>
<input type="button" value=" * "
onClick="operation('*',6)" style="color=red" name="button">
</td>
<td>
<input name=floor type="button" value="取整"
onClick="inputfunction('floor','deci')" style="color=red">
</td>
<td>
<input type="button" value=" 或 "
onClick="operation('|',1)" style="color=red" name="button">
</td>
</tr>
<tr align=center>
<td>
<input type="button" value=" 1 "
onClick="inputkey('1')" style="color=blue" name="button">
</td>
<td>
<input name=k2 type="button" value=" 2 "
onClick="inputkey('2')" style="color=blue">
</td>
<td>
<input name=k3 type="button" value=" 3 "
onClick="inputkey('3')" style="color=blue">
</td>
<td>
<input type="button" value=" - "
onClick="operation('-',5)" style="color=red" name="button">
</td>
<td>
<input type="button" value="左移"
onClick="operation('<',4)" style="color=red" name="button">
</td>
<td>
<input type="button" value=" 非 "
onClick="inputfunction('~','~')" style="color=red" name="button">
</td>
</tr>
<tr align=center>
<td>
<input type="button" value=" 0 "
onClick="inputkey('0')" style="color=blue" name="button">
</td>
<td>
<input type="button" value="+/-"
onClick="changeSign()" style="color=blue" name="button">
</td>
<td>
<input name=kp type="button" value=" . "
onClick="inputkey('.')" style="color=blue">
</td>
<td>
<input type="button" value=" + "
onClick="operation('+',5)" style="color=red" name="button">
</td>
<td>
<input type="button" value=" ＝ "
onClick="result()" style="color=red" name="button">
</td>
<td>
<input type="button" value="异或"
onClick="operation('x',2)" style="color=red" name="button">
</td>
</tr>
<tr align=center>
<td>
<input name=ka type="button" value=" A "
onClick="inputkey('a')" style="color=blue" disabled=true>
</td>
<td>
<input name=kb type="button" value=" B "
onClick="inputkey('b')" style="color=blue" disabled=true>
</td>
<td>
<input name=kc type="button" value=" C "
onClick="inputkey('c')" style="color=blue" disabled=true>
</td>
<td>
<input name=kd type="button" value=" D "
onClick="inputkey('d')" style="color=blue" disabled=true>
</td>
<td>
<input name=ke type="button" value=" E⌨️ 快捷键说明
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