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织梦DedeCMS视频教程买空间 租服务器 选网硕互联！ 无忧站长工具,百度权重一键全查!
科学计算器,您可以先修改部分代码再运行.
<html> <head> <meta http-equiv="Content-Type" mrc="text/html; charset=gb2312"> <title>科学计算器－模板无忧www.mb5u.com</title> <style> <!-- BODY {font-size: 12px;background-color: #d4d4d4;color: #0001fC;background-attachment: fixed;} td{font-size:12px; 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> </head> <!--written by GoldHuman li hai--> <!--2000.8--> <body> <div align="center"> <form name=calc> <table border="1" width="500" height="250"> <tr> <td height=50> <table width=500> <td width="133"> </td> <td width="353"> <div align=center> <input type=text name="display" value="0" readonly size="40"> </div> </td> </table> </td> </tr> <tr> <td> <table width=500> <tr> <td width=290> <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 width=135> <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=500> <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> <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=183> <input type="button" value=" 退格 " onclick="backspace()" style="color=red"> <input type="button" value=" 清屏 " onClick="document.calc.display.value = 0 " style="color=red"> <input type="button" value=" 全清" onClick="clearall()" style="color=red"> </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"> </td> <td> <input type="button" value=" ) " onClick="disbracket()" style="color=#ff00ff"> </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"> </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"> </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"> </td> </tr> </table> </td> <td width=30> </td> <td> <table> <tr> <td> <input type="button" value=" 储存 " onClick="putmemory()" style="color=red"> </td> </tr> <td> <input type="button" value=" 取存 " onClick="getmemory()" style="color=red"> </td> </tr> <tr> <td> <input type="button" value=" 累存 " onClick="addmemory()" style="color=red"> </td> </tr> <tr> <td> <input type="button" value=" 积存 " onClick="multimemory()" style="color=red"> </td> </tr> <tr> <td height="33"> <input type="button" value=" 清存 " onClick="clearmemory()" style="color=red"> </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"> </td> <td> <input type="button" value="取余" onClick="operation('%',6)" style="color=red"> </td> <td> <input type="button" value=" 与 " onClick="operation('&',3)" style="color=red"> </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"> </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"> </td> </tr> <tr align=center> <td> <input type="button" value=" 1 " onClick="inputkey('1')" style="color=blue"> </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"> </td> <td> <input type="button" value="左移" onClick="operation('<',4)" style="color=red"> </td> <td> <input type="button" value=" 非 " onClick="inputfunction('~','~')" style="color=red"> </td> </tr> <tr align=center> <td> <input type="button" value=" 0 " onClick="inputkey('0')" style="color=blue"> </td> <td> <input type="button" value="+/-" onClick="changeSign()" style="color=blue"> </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"> </td> <td> <input type="button" value=" ＝ " onClick="result()" style="color=red"> </td> <td> <input type="button" value="异或" onClick="operation('x',2)" style="color=red"> </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 " onClick="inputkey('e')" style="color=blue" disabled=true> </td> <td> <input name=kf type="button" value=" F " onClick="inputkey('f')" style="color=blue" disabled=true> </td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </form> </div> </body> </html>