<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- saved from url=(0035)http://www.jctrans.com/tool/jsq.htm --><HTML><HEAD><TITLE>科学计算器</TITLE><META http-equiv=Content-Type content="text/html; charset=gb2312"><!--written by GoldHuman li hai--><!--2000.8--><STYLE>BODY { FONT-SIZE: 9pt; BACKGROUND-ATTACHMENT: fixed; COLOR: #0001fc; FONT-FAMILY: "宋体", "Arial", "Times New Roman"; BACKGROUND-COLOR: #edf0e1}TD { FONT-SIZE: 9pt; FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; font-color: #000000}</STYLE>
<SCRIPT language=javascript><!--var endNumber=truevar mem=0var carry=10var 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><!--written by GoldHuman li hai--><!--2000.8--><META content="MSHTML 6.00.2900.3395" name=GENERATOR></HEAD><BODY><DIV align=center><FORM name=calc><TABLE height=250 width=500 border=1> <TBODY> <TR> <TD height=50> <TABLE width=500> <TBODY> <TR> <TD></TD> <TD> <DIV align=center><INPUT readOnly size=40 value=0 name=display> </DIV></TD></TR></TBODY></TABLE></TD></TR> <TR> <TD> <TABLE width=500> <TBODY> <TR> <TD width=290><INPUT οnclick=inputChangCarry(16) type=radio name=carry> 十六进制 <INPUT οnclick=inputChangCarry(10) type=radio CHECKED name=carry> 十进制 <INPUT οnclick=inputChangCarry(8) type=radio name=carry> 八进制 <INPUT οnclick=inputChangCarry(2) type=radio name=carry> 二进制 </TD> <TD></TD> <TD width=135><INPUT οnclick="inputChangAngle('d')" type=radio CHECKED value=d name=angle> 角度制 <INPUT οnclick="inputChangAngle('r')" type=radio value=r name=angle> 弧度制 </TD></TR></TBODY></TABLE> <TABLE width=500> <TBODY> <TR> <TD width=170><INPUT οnclick=inputshift() type=checkbox name=shiftf>上档功能 <INPUT οnclick=inputshift() type=checkbox name=hypf>双曲函数 </TD> <TD><INPUT style="BACKGROUND-COLOR: lightgrey" readOnly size=3 name=bracket> <INPUT style="BACKGROUND-COLOR: lightgrey" readOnly size=3 name=memory> <INPUT style="BACKGROUND-COLOR: lightgrey" readOnly size=3 name=operator> </TD> <TD width=183><INPUT style="COLOR: red" οnclick=backspace() type=button value=" 退格 "> <INPUT style="COLOR: red" οnclick="document.calc.display.value = 0 " type=button value=" 清屏 "> <INPUT style="COLOR: red" οnclick=clearall() type=button value=" 全清"> </TD></TR></TBODY></TABLE> <TABLE width=500> <TBODY> <TR> <TD> <TABLE> <TBODY> <TR align=middle> <TD><INPUT style="COLOR: blue" οnclick="inputfunction('pi','pi')" type=button value=" PI " name=pi> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputfunction('e','e')" type=button value=" E " name=e> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('dms','deg')" type=button value=d.ms name=bt> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: #ff00ff" οnclick=addbracket() type=button value=" ( "> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick=disbracket() type=button value=" ) "> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('ln','exp')" type=button value=" ln " name=ln> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputtrig('sin','arcsin','hypsin','ahypsin')" type=button value="sin " name=sin> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="operation('^',7)" type=button value="x^y "> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('log','expdec')" type=button value="log " name=log> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputtrig('cos','arccos','hypcos','ahypcos')" type=button value="cos " name=cos> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('cube','cubt')" type=button value="x^3 " name=cube> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('!','!')" type=button value=" n! "> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputtrig('tan','arctan','hyptan','ahyptan')" type=button value="tan " name=tan> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('sqr','sqrt')" type=button value="x^2 " name=sqr> </TD> <TD><INPUT style="COLOR: #ff00ff" οnclick="inputfunction('recip','recip')" type=button value="1/x "> </TD></TR></TBODY></TABLE></TD> <TD width=30></TD> <TD> <TABLE> <TBODY> <TR> <TD><INPUT style="COLOR: red" οnclick=putmemory() type=button value=" 储存 "> </TD></TR> <TR> <TD><INPUT style="COLOR: red" οnclick=getmemory() type=button value=" 取存 "> </TD></TR> <TR> <TD><INPUT style="COLOR: red" οnclick=addmemory() type=button value=" 累存 "> </TD></TR> <TR> <TD><INPUT style="COLOR: red" οnclick=multimemory() type=button value=" 积存 "> </TD></TR> <TR> <TD height=33><INPUT style="COLOR: red" οnclick=clearmemory() type=button value=" 清存 "> </TD></TR></TBODY></TABLE></TD> <TD width=30></TD> <TD> <TABLE> <TBODY> <TR align=middle> <TD><INPUT style="COLOR: blue" οnclick="inputkey('7')" type=button value=" 7 " name=k7> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('8')" type=button value=" 8 " name=k8> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('9')" type=button value=" 9 " name=k9> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('/',6)" type=button value=" / "> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('%',6)" type=button value=取余> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('&',3)" type=button value=" 与 "> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: blue" οnclick="inputkey('4')" type=button value=" 4 " name=k4> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('5')" type=button value=" 5 " name=k5> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('6')" type=button value=" 6 " name=k6> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('*',6)" type=button value=" * "> </TD> <TD><INPUT style="COLOR: red" οnclick="inputfunction('floor','deci')" type=button value=取整 name=floor> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('|',1)" type=button value=" 或 "> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: blue" οnclick="inputkey('1')" type=button value=" 1 "> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('2')" type=button value=" 2 " name=k2> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('3')" type=button value=" 3 " name=k3> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('-',5)" type=button value=" - "> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('<',4)" type=button value=左移> </TD> <TD><INPUT style="COLOR: red" οnclick="inputfunction('~','~')" type=button value=" 非 "> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: blue" οnclick="inputkey('0')" type=button value=" 0 "> </TD> <TD><INPUT style="COLOR: blue" οnclick=changeSign() type=button value=+/-> </TD> <TD><INPUT style="COLOR: blue" οnclick="inputkey('.')" type=button value=" . " name=kp> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('+',5)" type=button value=" + "> </TD> <TD><INPUT style="COLOR: red" οnclick=result() type=button value=" ＝ "> </TD> <TD><INPUT style="COLOR: red" οnclick="operation('x',2)" type=button value=异或> </TD></TR> <TR align=middle> <TD><INPUT style="COLOR: blue" disabled οnclick="inputkey('a')" type=button value=" A " name=ka> </TD> <TD><INPUT style="COLOR: blue" disabled οnclick="inputkey('b')" type=button value=" B " name=kb> </TD> <TD><INPUT style="COLOR: blue" disabled οnclick="inputkey('c')" type=button value=" C " name=kc> </TD> <TD><INPUT style="COLOR: blue" disabled οnclick="inputkey('d')" type=button value=" D " name=kd> </TD> <TD><INPUT style="COLOR: blue" disabled οnclick="inputkey('e')" type=button value=" E" name=ke> </TD> <TD><INPUT style="COLOR: blue" disabled οnclick="inputkey('f')" type=button value=" F" name=kf> </TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></FORM></DIV><%referer=Request.ServerVariables ("HTTP_REFERER")%><SCRIPT language=javascript> document.write ("<a href='../stats_new/infolist.asp'>"); document.write ("<img src='../stats_new/count.asp?referer=<%=referer%>&Width="+escape(screen.width)+"&Height="+escape(screen.height)+"&name=工具' border=0 width=2 height=2></a>"); </SCRIPT></BODY></HTML>
转载于:https://www.cnblogs.com/liyuxin/archive/2011/03/23/1992585.html
相关资源：Java实现-科学计算器