林育芳期末考17+18週 JavaScript 金融計算

林育芳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

<style>

h1{border: 30px outset red;  

  background-color: green;  

  color: white;

  text-align: center;}

</style>

<h1>林育芳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="160"></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="160"></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>

<div class="separator" style="clear: both;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5jEO88Nv9iIIVXFgMnr4NP4OXWsYwRH0SVHXqdRoNowg48dUNa6i42e5tjA3GOYjCzKVSqACPu-9CPcUbFVwbJmlJ6yGYUfLa_WOh1SHSADpaZKy8I1wZ4zqoiN2xeF5IhJvfncnAdqE/s748/1.JPG" style="display: block; padding: 1em 0px; text-align: center;"><img alt="" border="0" data-original-height="375" data-original-width="748" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5jEO88Nv9iIIVXFgMnr4NP4OXWsYwRH0SVHXqdRoNowg48dUNa6i42e5tjA3GOYjCzKVSqACPu-9CPcUbFVwbJmlJ6yGYUfLa_WOh1SHSADpaZKy8I1wZ4zqoiN2xeF5IhJvfncnAdqE/s600/1.JPG" width="600" /></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/AVvXsEhtHoUeu67QC2ImzYXr-BLEdfisVFjJyAh4hb8l7xBkQDO0eG4_cF1kYjw-jhsTRLOlUNpA2m555TrpH3DlQssZCNqWc-YQO7XJBbnkmDtmHaSL2lMCe-lIaNhKp66et8FJwAjcToUantk/s657/2.JPG" style="display: block; padding: 1em 0px; text-align: center;"><img alt="" border="0" data-original-height="394" data-original-width="657" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhtHoUeu67QC2ImzYXr-BLEdfisVFjJyAh4hb8l7xBkQDO0eG4_cF1kYjw-jhsTRLOlUNpA2m555TrpH3DlQssZCNqWc-YQO7XJBbnkmDtmHaSL2lMCe-lIaNhKp66et8FJwAjcToUantk/s600/2.JPG" width="600" /></a></div>

<h1>程式碼</h1><div><br /></div>

<script>

function CompF(){   

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

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

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

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

  var fvif = y;

  fvif++;

  pvif = fvif **n ; //pvif = 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.toFixed(2);

}

function CompN(){   //計算 n

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

  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;

}

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>