[removed]
//rumus pmt
function double PMT(i, n, p) {
return hasil i * p * Math.pow((1 + i), n) / (1 - Math.pow((1 + i), n));
}

function CalculatePMTFromForm() {
// untuk ambil value form
var p = "<?php $jumlah_kredit ?>";
var i = "<?php $bunga ?>";
var n = "<?php $durasi ?>";
// normalisasi sesuai rumus
var i = i / 1200;
// hitung
var pmt = PMT(i, n, -p);
document.getElementById('idResult').value = accounting.formatNumber(pmt);
}
[removed]