function hitung()
{
var n=(document.wahid.ideret.value);
var nn=(n-1)/2
var x="";
for(i=1;i<nn;i++)
{
x=x+((2*i)-(-n)-(-1))/2+" , ";
t=x+n;
}
document.getElementById('wahid1').value =t;
}
//x=x+(2*i-1+1)/2+" , "; untuk nn =(n-(-1))/2
//x=x+((2*i)-(-n)-(-1))/2+" , "; untuk nn =(n-1)/2 dan t=x+n;
untuk htmlnya
<html>
<body>
<script type="text/javascript" src="rumus/rumus.js"></script>
<form name="wahid">
<h2 align="left">Label titik x ganjil</h2>
N : <input type="text" size=1 name="ideret" value="5">
Hasil
TOTAL : <br>
<textarea rows ="4" cols ="80" id="wahid1"></textarea><br>
<input type="button" value="SUBMIT" onclick="hitung()">
<input type="reset" value="RESET">
</form>
</body>
</html>
{
var n=(document.wahid.ideret.value);
var nn=(n-1)/2
var x="";
for(i=1;i<nn;i++)
{
x=x+((2*i)-(-n)-(-1))/2+" , ";
t=x+n;
}
document.getElementById('wahid1').value =t;
}
//x=x+(2*i-1+1)/2+" , "; untuk nn =(n-(-1))/2
//x=x+((2*i)-(-n)-(-1))/2+" , "; untuk nn =(n-1)/2 dan t=x+n;
untuk htmlnya
<html>
<body>
<script type="text/javascript" src="rumus/rumus.js"></script>
<form name="wahid">
<h2 align="left">Label titik x ganjil</h2>
N : <input type="text" size=1 name="ideret" value="5">
Hasil
TOTAL : <br>
<textarea rows ="4" cols ="80" id="wahid1"></textarea><br>
<input type="button" value="SUBMIT" onclick="hitung()">
<input type="reset" value="RESET">
</form>
</body>
</html>
