蔣姿如期末考17+18週 JavaScript 金融計算

劉任昌2021年1月期末考

現值
利率
期數
金流
終值

對照EXCEL先打開從範圍定義名稱

對照EXCEL先打開從範圍定義名稱

<h1>劉任昌2021年1月期末考</h1>

 

<table border="1">

<tbody>

<tr><td>現值</td><td><input id="p" type="number" /></td><td><input onclick="CompP()" type="button" value="計算現值" /></td><td id="p_" width="180"></td></tr>

<tr><td>利率</td><td><input id="y" type="number" value="0.001" /></td></tr>

<tr><td>期數</td><td><input id="n" type="number" value="240" /></td><td><input onclick="CompN()" type="button" value="計算期數" /></td><td id="n_" width="180"></td></tr>

<tr><td>金流</td><td><input id="m" type="number" value="0" /></td><td><input onclick="CompM()" type="button" value="計算金流" /></td><td id="m_"></td></tr>

<tr><td>終值</td><td><input id="f" type="number" value="0" /></td><td><input onclick="CompF()" type="button" value="計算終值" /></td><td id="f_"></td></tr>

</tbody></table>

 

<h1>對照EXCEL先打開從範圍定義名稱</h1>

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<h1>對照EXCEL先打開從範圍定義名稱</h1>

<div class="separator" style="clear: both;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiboaNnldTnaLjWwM78-qwFiRrvhXoCH7DuBOe3TuJHrWyrseiGvufajmCEsqLaa9OneH-wEPMSpAJPCd8Lk8371GbDLPbndYEiMUnV-HSr00LXNMA5g9dwGLtnsAmsPsfYwdIfKAr_IWiF/s1103/2.PNG" style="display: block; padding: 1em 0px; text-align: center;"><img alt="" border="0" data-original-height="467" data-original-width="1103" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiboaNnldTnaLjWwM78-qwFiRrvhXoCH7DuBOe3TuJHrWyrseiGvufajmCEsqLaa9OneH-wEPMSpAJPCd8Lk8371GbDLPbndYEiMUnV-HSr00LXNMA5g9dwGLtnsAmsPsfYwdIfKAr_IWiF/s600/2.PNG" width="600" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiboaNnldTnaLjWwM78-qwFiRrvhXoCH7DuBOe3TuJHrWyrseiGvufajmCEsqLaa9OneH-wEPMSpAJPCd8Lk8371GbDLPbndYEiMUnV-HSr00LXNMA5g9dwGLtnsAmsPsfYwdIfKAr_IWiF/s1103/2.PNG" style="display: block; padding: 1em 0px; text-align: left;"><br /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiboaNnldTnaLjWwM78-qwFiRrvhXoCH7DuBOe3TuJHrWyrseiGvufajmCEsqLaa9OneH-wEPMSpAJPCd8Lk8371GbDLPbndYEiMUnV-HSr00LXNMA5g9dwGLtnsAmsPsfYwdIfKAr_IWiF/s1103/2.PNG" style="display: block; padding: 1em 0px; text-align: center;"><br /></a></div>

 

<script>

function CompF(){

  var y = document.getElementById("y").value; //輸入

  var m = document.getElementById("m").value;

  var p = document.getElementById("p").value;

  var n = document.getElementById("n").value;

  var fvif = y;

  fvif++;         

  pvif = fvif ** n ;

  var f = p * fvif - m / y * (fvif - 1) ;

  document.getElementById("f_").innerHTML = f.toFixed(6);

}

function CompP(){      //計算現值 p

  var y = document.getElementById("y").value;

  var n = document.getElementById("n").value;

  var m = document.getElementById("m").value;

  var f = document.getElementById("f").value;

  var pvif = y;

  pvif++;

  pvif =1/pvif**n;

  var p = (1-pvif)*m/y + f * pvif;

  document.getElementById("p_").innerHTML = p;

}

function CompN(){       //計算期數 n

  var y = document.getElementById("y").value; //從html表格取得 id=y

  var n = document.getElementById("n").value;

  var m = document.getElementById("m").value;

  var f = document.getElementById("f").value;

  var pvif = y;

  pvif++;

  pvif =1/pvif**n;

  var p = Math.log((f-m/y)/(p-m/y))/Math.log(pvif);

  document.getElementById("n_").innerHTML = n;

}

function CompM(){     //計算金流 m

  var y = document.getElementById("y").value;

  var n = document.getElementById("n").value;

  var p = document.getElementById("p").value;

  var f = document.getElementById("f").value;

  var pvif = y;      //pvif =利率

  pvif++;          //pvif =利率 + 1

  pvif =1/pvif**n;    //pvif =1/(利率+1)^n

  var m = y *(p-f*pvif)/(1-pvif);

  document.getElementById("m_").innerHTML = m;

}

 

</script>