HESAP MAKİNESİ 2

<form name="Keypad" action>

<div align="center"><center>

<table>

<b>

<tr>

<td><div align="center"><center>

<table border="2" width="50" height="60" cellpadding="1" cellspacing="5" bgcolor="pink">

<tr>

<td colspan="3" align="middle"><input name="ReadOut" type="Text" size="24" value="0" width="100%"> </td>

<td> </td>

<td><input name="btnClear" type="Button" value=" C "

onclick="Clear()"> </td>

<td><input name="btnClearEntry" type="Button" value=" CE "

onclick="ClearEntry()"> </td>

</tr><tr>

<td><input name="btnSeven" type="Button" value=" 7 "

onclick="NumPressed(7)"> </td>

<td><input name="btnEight" type="Button" value=" 8 "

onclick="NumPressed(8)"> </td>

<td><input name="btnNine" type="Button" value=" 9 "

onclick="NumPressed(9)"> </td>

<td> </td>

<td><input name="btnNeg" type="Button" value=" +/- " onclick="Neg()"> </td>

<td><input name="btnPercent" type="Button" value=" % "

onclick="Percent()"></td>

</tr>

<tr>

<td><input name="btnFour" type="Button" value=" 4 "

onclick="NumPressed(4)"> </td>

<td><input name="btnFive" type="Button" value=" 5 "

onclick="NumPressed(5)"> </td>

<td><input name="btnSix" type="Button" value=" 6 "

onclick="NumPressed(6)"></td>

<td> </td>

<td align="middle"><input name="btnPlus" type="Button" value=" + "

onclick="Operation('+')"> </td>

<td align="middle"><input name="btnMinus" type="Button" value=" - "

onclick="Operation('-')"> </td>

</tr>

<tr>

<td><input name="btnOne" type="Button" value=" 1 "

onclick="NumPressed(1)"> </td>

<td><input name="btnTwo" type="Button" value=" 2 "

onclick="NumPressed(2)"> </td>

<td><input name="btnThree" type="Button" value=" 3 "

onclick="NumPressed(3)"> </td>

<td> </td>

<td align="middle"><input name="btnMultiply" type="Button" value=" * "

onclick="Operation('*')"> </td>

<td align="middle"><input name="btnDivide" type="Button" value=" / "

onclick="Operation('/')"> </td>

</tr>

<tr>

<td><input name="btnZero" type="Button" value=" 0 "

onclick="NumPressed(0)"> </td>

<td><input name="btnDecimal" type="Button" value=" . "

onclick="NumPressed(6)"></td>

<td colspan="3"> </td>

<td><input name="btnEquals" type="Button" value=" = "

onclick="Operation('=')"> </td>

</tr>

</table>

</center></div></td>

</tr>

</table>

</center></div></b>

</form>

<script LANGUAGE="JavaScript">

<!-- Begin

var FKeyPad = document.Keypad;

var Accum = 0;

var FlagNewNum = false;

var PendingOp = "";

function NumPressed (Num) {

if (FlagNewNum) {

FKeyPad.ReadOut.value = Num;

FlagNewNum = false;

}

else {

if (FKeyPad.ReadOut.value == "0")

FKeyPad.ReadOut.value = Num;

else

FKeyPad.ReadOut.value += Num;

}

}

function Operation (Op) {

var Readout = FKeyPad.ReadOut.value;

if (FlagNewNum && PendingOp != "=");

else {

FlagNewNum = true;

if ( '+' == PendingOp )

Accum += parseFloat(Readout);

else if ( '-' == PendingOp )

Accum -= parseFloat(Readout);

else if ( '/' == PendingOp )

Accum /= parseFloat(Readout);

else if ( '*' == PendingOp )

Accum *= parseFloat(Readout);

else

Accum = parseFloat(Readout);

FKeyPad.ReadOut.value = Accum;

PendingOp = Op;

}

}

function Decimal () {

var curReadOut = FKeyPad.ReadOut.value;

if (FlagNewNum) {

curReadOut = "0.";

FlagNewNum = false;

}

else {

if (curReadOut.indexOf(".") == -1)

curReadOut += ".";

}

FKeyPad.ReadOut.value = curReadOut;

}

function ClearEntry () {

FKeyPad.ReadOut.value = "0";

FlagNewNum = true;

}

function Clear () {

Accum = 0;

PendingOp = "";

ClearEntry();

}

function Neg () {

FKeyPad.ReadOut.value = parseFloat(FKeyPad.ReadOut.value) * -1;

}

function Percent () {

FKeyPad.ReadOut.value = (parseFloat(FKeyPad.ReadOut.value) / 100) *

parseFloat(Accum);

}

// End -->

</script>

ANA SAYFA

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