Menghitung Persamaan Kuadrat dan infut integer

Dudun Syamsudin
C. LATIHAN DAN EVALUASI

<html>
<head>
<title>Mencari persamaan kuadrat</title>
</head>
<body bgcolor=yellow>
<script language="JavaScript">
<!--
function akar(a,b,c)
{
var hasil = (b*b)-(4*a*c);
return(hasil);
}

var a=parseInt(prompt("Menghitung akar persamaan kuadrat \n masukan nilai A:\n"));
var b=parseInt(prompt("Menghitung akar persamaan kuadrat \n masukan nilai B:\n"));
var c=parseInt(prompt("Menghitung akat persamaan kuadrat \n masukan nilai C:\n"));

var z=akar(a,b,c);

document.write("Nilai akar kuadrat =" +z+"<BR>");
document.write("<HR>");
document.write("<BR>");


if (z>0)
{
var x1= (-b - Math.sqrt(z))/(2*a);
var x2= (-b + Math.sqrt(z))/(2*a);

document.write("Nilai x1=" + x1 + "<BR>");
document.write("Nilai x2=" + x2 + "<BR>");
document.write("<BR>");
document.write("<HR>");
alert("Succesfull");
} else

if (z==0)
{
document.write("No root real");
alert("Try Again?");
}
if (z<0)

{
document.write("No root real");
alert("Try again?");
}

//-->
</script>
</body>
</html>
<HTML>
<HEAD>
<TITLE>Menghitung Persamaan Kuadrat</TITLE>
</HEAD>
<BODY BGCOLOR =YELLOW>
<SCRIPT LANGUAGE ="JavaScript">
<!--
function Akar(x,y,z)
{
Var hasil=(x*X)-(4*x*z);
return(hasil);
}

Var x=parseInt(prompt(Menghitung akar persamaan kuadrat\n masukan nilai X:\n"));
Var y=parseInt(prompt(Menghitung akar persamaan kuadrat\n masukan nilai Y:\n"));
Var z=parseInt(prompt(Menghitung akar persamaan kuadrat\n masukan nilai Z:\n"));

var a=akar(x,y,z);

document.write("Nilai akar kuadrat="+Z+"<BR>");
document.write("<HR>");
document.write("<BR>");

if(a>0)
{
VarX1=(-y-Math.sqrt(a))/(2*x);
VarX2=(-y+Math.sqrt(a))/(2*x);

document.write("Nilai x1" +x1 +"<BR>");
document.write("Nilai x2" +x2 +"<BR>");
document.write("<BR>");
document.write("<HR>");
aleart("Tray Again?");
}

if(a<0)

{
document.write("No root real");
aleart("Tray again?");
}
//-->
</SCRIPT>
</BODY>
</HTML>

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EVALUASI INFUT INTEGER

<html>
<head>
<title>membaca_input_integer</title>
</head>
<body>
<script language ="JavaScript">
<!--

var a = parseInt(prompt("Masukan data Integer yang ingin ditampilkan"));
if (isNaN(a)) {
document.write("data yang anda masukan salah");
document.write("<br>");
document.write("Type datanya harus "+typeof(a));
} else
document.write("Data yang dimasukan sudah betul, yaitu : "+a);
document.write("<hr>");


//-->
</script>
</body>
</html>

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Gambar.4

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Program Menambahkan 2 Bilangan

Dudun Syamsudin
Gambar.1

Gambar.2







modul_1_Latihan 1


<HTML>
<HEAD>
<TITLE>Type Bilangan</TITLE>
<SCRIPT LANGUAGE = "JavaScript">
<!--
alert("punten");
//-->
</SCRIPT>
</HEAD>
<BODY BGCOLOR=BLUE>
<SCRIPT LANGUAGE = "JavaScript">
<!--
var a = 15;
var b = 14;
tambah = a + b;
kali = a * b;

document.write("penambahan (" +a+ " + " +b+ ") = " + tambah);
document.write("<BR>");
document.write("perkalian (" +a+ " X " +b+ ") = " + kali);
document.write("<BR>");

//-->
</SCRIPT>
</BODY>
</HTML>

Modul_1_Latihan II

<HTML>
<HEAD>
<TITLE>Konversi Antar sistem Bilangan</TITLE>
</HEAD>
<BODY BGCOLOR =GREEN>
<SCRIPT LANGUAGE = "JavaScript">
<!--
var bil =new Number(30);
document.write("Bilangan desimal: " +bil+ "<BR>");
document.write("<HR>");

document.write("Biner : " + bil.toString(2) + "<BR>");
document.write("Oktal : " + bil.toString(8) + "<BR>");
document.write("Heksa : " + bil.toString(16) + "<HR>");


//-->
</SCRIPT>
</BODY>
</HTML>
Gambar .1




Modul_1_latihan 111

<HTML>
<HEAD>
<TITLE>Membuat Fungsi Matematika Dengan Javascript</TITLE>
</HEAD>
<BODY>
<SCRIPT LANGUAGE = "JavaScript">
<!--
function jumlah(x, y) {
var hasil = x + y;

return(hasil);
}

var a =parseInt(prompt("ketika Bilangan A =\n ingat jangan string"));
var b =parseInt(prompt("ketika bilangan B =\n ingat jangan string"));
var z =jumlah(a,b);

document.write(z);
document.write("<BR>");
document.write("<HR>");
document.write("tipe data nya adalah = " + typeof(b));

//-->
</SCRIPT>
</BODY>
</HTML>

Gambar.1



Gambar.2



Gambar.3




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