朱婉蓁 期末考 第十七週+第十八週 JavaScript 金融計算

朱婉蓁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金融計算

程式碼

<h1>朱婉蓁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>

<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++;          // fvif = 1+y

  fvif = fvif ** n ; //fvif = 1/(1+y)^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 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;

}

function CompN(){     //計算期數 n

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

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

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

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

  var pvif = y;

  pvif++;

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

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

}

</script>

<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/AVvXsEhYLf5HFcFD97qGOYeKFjdpDra4FLMwJ-gm8czQnnqeSskvhJDhCCRfOAQaa7pFb5szUo0NEB0miIv3et94XlByKzLpLk0da5G_k3d6CQvoUzauNXgKIYQH0TPIcoUpRAR7kYEIZbPNjts/s749/1.JPG" style="display: block; padding: 1em 0; text-align: center; "><img alt="" border="0" width="600" data-original-height="379" data-original-width="749" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYLf5HFcFD97qGOYeKFjdpDra4FLMwJ-gm8czQnnqeSskvhJDhCCRfOAQaa7pFb5szUo0NEB0miIv3et94XlByKzLpLk0da5G_k3d6CQvoUzauNXgKIYQH0TPIcoUpRAR7kYEIZbPNjts/s600/1.JPG"/></a></div>

<h1>對照EXCEL金融計算</h1>

<div class="separator" style="clear: both;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxrqiS7xQfAggX7EB51-rmRuN3DOfZ_HsyC4SZWU9sgNcR2mMqa_UBTWkuvd-R3WQkhdmH8STOzQR_H11fNKGWN8C71vxyMGsccfIIgIJw4YMZLkZtrjbex5cJNsCvw-Y4zwJeFQ3sESY/s608/2.JPG" style="display: block; padding: 1em 0; text-align: center; "><img alt="" border="0" width="600" data-original-height="380" data-original-width="608" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxrqiS7xQfAggX7EB51-rmRuN3DOfZ_HsyC4SZWU9sgNcR2mMqa_UBTWkuvd-R3WQkhdmH8STOzQR_H11fNKGWN8C71vxyMGsccfIIgIJw4YMZLkZtrjbex5cJNsCvw-Y4zwJeFQ3sESY/s600/2.JPG"/></a></div>

<h1>程式碼</h1>