<html>
<head>
<title> Belajar array</title>
<script type=text/javascript>
var angka=["8","9","10"];
var a=[];
function kuadrat()
{
{
var A=angka[0]*angka[0];
a[0]=A;
}
{
var B=angka[1]*angka[1];
a[1]=B;
}
{
var C=angka[2]*angka[2];
a[2]=C;
}
document.getElementById("hasil_1").value=a[0];
document.getElementById("hasil_2").value=a[1];
document.getElementById("hasil_3").value=a[2];
document.getElementById("d").value=angka[0];
document.getElementById("e").value=angka[1];
document.getElementById("f").value=angka[2];
}
</script>
</head>
<body bgcolor=lime>
ANGKA AWAL <br>
<input type=text value=8 size=2>
<input type=text value=9 size=2>
<input type=text value=10 size=2><br>
ANDA MEMASUKAN ANGKA <br>
<input type=text id=d size=2>
<input type=text id=e size=2>
<input type=text id=f size=2><br>
<input type=button value=KUADRATKAN onclick='kuadrat();'><br>
HASIL <br>
<input type=text id=hasil_1 size=10>
<input type=text id=hasil_2 size=10>
<input type=text id=hasil_3 size=10>
</body>
</html>
Rabu, 26 Maret 2014
Selasa, 11 Maret 2014
PERSAMAAN KUADRAT
<html>
<head>
<title>PROGRAM PERSAMAAN KUADRAT</title>
<script type=text/javascript>
function hitung ()
{
var a =document.getElementById("text_a").value;
var b =document.getElementById("text_b").value;
var c =document.getElementById("text_c").value;
var d = (b*b)-(4*a*c);
document.getElementById("text_d").value= d;
if (d>0)
{
var x1 = (-b - Math.sqrt (d))/(2*a);
document.getElementById("text_x1").value= x1;
var x2 = (-b + Math.sqrt (d))/(2*a);
document.getElementById("text_x2").value= x2;
var ket = ("Memiliki 2 akar real yang berbeda");
document.getElementById("text_ket").value= ket;
}else
if (d==0)
{
var x1 = -b /2*a
document.getElementById("text_x1").value= x1;
var x2 = -b /2*a
document.getElementById("text_x2").value= x2;
var ket = ("Memiliki 2 akar yang sama dan rasional");
document.getElementById("text_ket").value= ket;
}else
if (d<0)
{
var x1 = ("Tidak Dapat Di Hitung");
document.getElementById("text_x1").value= x1;
var x2 = ("Tidak Dapat Di Hitung");
document.getElementById("text_x2").value= x2;
var ket = ("Persamaan kuadrat imajiner (tidak memiliki akar-akar)");
document.getElementById("text_ket").value= ket;
}
}
</script>
</head>
<body bgcolor=blue>
<h1>Menghitung Nilai Persamaan Kuadrat :</h1>
<h3>Bentuk umum : y = ax<sup>2</sup> + bx + c = 0</h2>
<form>
<h4>Masukan Masing-masing Nilainya : </h3>
<h5>Nilai a = <input type=text id=text_a size="10"><br>
Nilai b = <input type=text id=text_b size="10"><br>
Nilai c = <input type=text id=text_c size="10"></h4>
<input type=button value=HITUNG onclick='hitung();'>
<br>
<h5>Nilai Determinan (d) = <input type=text id=text_d size="10"> <br>
<br>
Nilai X<sub>1</sub>= <input type=text id=text_x1 size="10"><br>
Nilai X<sub>2</sub>= <input type=text id=text_x2 size="10"><br>
Keterangan : <input type=text id=text_ket size="40"><br></h4>
<input type="reset" value="HAPUS">
</form>
<br><br>
<marquee><h4><font face="lucida hand writing">PUJI LESTANTO (Teknik Informatika)</font></h4></marquee>
</body>
</html>
<head>
<title>PROGRAM PERSAMAAN KUADRAT</title>
<script type=text/javascript>
function hitung ()
{
var a =document.getElementById("text_a").value;
var b =document.getElementById("text_b").value;
var c =document.getElementById("text_c").value;
var d = (b*b)-(4*a*c);
document.getElementById("text_d").value= d;
if (d>0)
{
var x1 = (-b - Math.sqrt (d))/(2*a);
document.getElementById("text_x1").value= x1;
var x2 = (-b + Math.sqrt (d))/(2*a);
document.getElementById("text_x2").value= x2;
var ket = ("Memiliki 2 akar real yang berbeda");
document.getElementById("text_ket").value= ket;
}else
if (d==0)
{
var x1 = -b /2*a
document.getElementById("text_x1").value= x1;
var x2 = -b /2*a
document.getElementById("text_x2").value= x2;
var ket = ("Memiliki 2 akar yang sama dan rasional");
document.getElementById("text_ket").value= ket;
}else
if (d<0)
{
var x1 = ("Tidak Dapat Di Hitung");
document.getElementById("text_x1").value= x1;
var x2 = ("Tidak Dapat Di Hitung");
document.getElementById("text_x2").value= x2;
var ket = ("Persamaan kuadrat imajiner (tidak memiliki akar-akar)");
document.getElementById("text_ket").value= ket;
}
}
</script>
</head>
<body bgcolor=blue>
<h1>Menghitung Nilai Persamaan Kuadrat :</h1>
<h3>Bentuk umum : y = ax<sup>2</sup> + bx + c = 0</h2>
<form>
<h4>Masukan Masing-masing Nilainya : </h3>
<h5>Nilai a = <input type=text id=text_a size="10"><br>
Nilai b = <input type=text id=text_b size="10"><br>
Nilai c = <input type=text id=text_c size="10"></h4>
<input type=button value=HITUNG onclick='hitung();'>
<br>
<h5>Nilai Determinan (d) = <input type=text id=text_d size="10"> <br>
<br>
Nilai X<sub>1</sub>= <input type=text id=text_x1 size="10"><br>
Nilai X<sub>2</sub>= <input type=text id=text_x2 size="10"><br>
Keterangan : <input type=text id=text_ket size="40"><br></h4>
<input type="reset" value="HAPUS">
</form>
<br><br>
<marquee><h4><font face="lucida hand writing">PUJI LESTANTO (Teknik Informatika)</font></h4></marquee>
</body>
</html>
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