:: Design and More Formulars @ Tricks:: WEB.Sci-Calculator::

WEB .Sci-CALCulator

*X? + *X + = 0

CALCpad

เอาไปใช้กับเวปของท่าน

<script language="JavaScript">
// Written by Alex Golubchik (aag4@lehigh.edu)
// Courtesy of SimplytheBest.net (http://simplythebest.net/info/dhtml_scripts.html)
function round(val)
{
return(Math.round(val*10000000)/10000000);
}
PI = 3.141592654;
function pie()
{
document.keypad.display.value = PI;
}
function MakeArray(n){
this.length=n;
 for(var i=1; i<=n; i++) this[i]=0;
 return this
}
link = new MakeArray(5);
function enter(num)
{
document.keypad.display.value += num;
}
function calculate(sign)
{
var temp = document.keypad.display.value * 1;
document.keypad.display.value = "";
document.keypad.list.value = temp;
link[1] = temp;
if (sign == "/") {link[2] = "/"; document.keypad.list.value += " / ";}
if (sign == "*") {link[2] = "*"; document.keypad.list.value += " * ";}
if (sign == "-") {link[2] = "-"; document.keypad.list.value += " - ";}
if (sign == "+") {link[2] = "+"; document.keypad.list.value += " + ";}
if (sign == "p") {link[2] = "p"; document.keypad.list.value += " ^ ";}
}
function power()
{
temp = 1;
n = link[3];
 for(var i=1; i<=n; i++) temp *= link[1];
return(temp);
}
function equal()
{
if (link[2]) {
if (document.keypad.display.value != "") {
var temp = document.keypad.display.value * 1;
document.keypad.list.value += temp;
link[3] = temp;
if (link[2] == "/") {res = link[1] / link[3]; document.keypad.display.value = round(res)}
if (link[2] == "*") {res = link[1] * link[3]; document.keypad.display.value = round(res)}
if (link[2] == "-") {res = link[1] - link[3]; document.keypad.display.value = round(res)}
if (link[2] == "+") {res = link[1] + link[3]; document.keypad.display.value = round(res)}
if (link[2] == "p") {document.keypad.display.value = round( power() )}
link[1]=0; link[2]=0; link[3]=0;
}
}
}
function calc(code)
{
var temp = document.keypad.display.value * 1;
if (code == 1) {temp1 = Math.sin(temp*PI/180); document.keypad.list.value = "sin "}
if (code == 2) {temp1 = Math.cos(temp*PI/180); document.keypad.list.value = "cos "}
if (code == 3) {temp1 = Math.tan(temp*PI/180); document.keypad.list.value = "tan "}
if (code == 4) {temp1 = Math.sqrt(temp); document.keypad.list.value = "sqrt "}
if (code == 5) {temp1 = Math.log(temp); document.keypad.list.value = "ln "}
if (code == 6) {temp1 = 1/temp; document.keypad.list.value = "1/x, x="}
if (code == 7) {temp1 = temp * temp; document.keypad.list.value = "x*x, x="}
document.keypad.list.value += temp;
document.keypad.display.value = round(temp1);
}
function fsolve()
{
var a = document.keypad.c1.value*1;
var b = document.keypad.c2.value*1;
var c = document.keypad.c3.value*1;
if (a==0) {document.keypad.list.value = " Not a Quadratic";
 document.keypad.display.value = " Equation"}
else { x1 = (b*b-4*a*c);
if ( x1 < 0) {document.keypad.list.value = " Imaginary Roots";
 temp = (Math.sqrt(Math.abs(x1)))/(2*a);
 x2 = round(-b/(2*a)) + "+/- " + round(temp) + "i";
 document.keypad.display.value = x2}
else {
var x1 = (-b + Math.sqrt(b*b-4*a*c)) / (2*a);
var x2 = (-b - Math.sqrt(b*b-4*a*c)) / (2*a);
document.keypad.list.value = "x1 = " + round(x1);
document.keypad.display.value = "x2 = " + round(x2);
}
}
}
function change()
{
var temp = document.keypad.display.value;
if (temp.substring(0,1) == "-") {document.keypad.list.value = "";
 document.keypad.display.value = 0 - document.keypad.display.value * 1}
if (temp.substring(0,1) != "-") {document.keypad.list.value = "";
 document.keypad.display.value = "-" + temp.substring(0,temp.length)}
}
function eraser()
{
document.keypad.list.value = " Start Punching!";
document.keypad.display.value = "";
document.keypad.c1.value = "";
document.keypad.c2.value = "";
document.keypad.c3.value = "";
link[1]=0; link[2]=0; link[3]=0;
}
function backer()
{
var temp = document.keypad.display.value;
document.keypad.display.value = temp.substring(0,temp.length*1 -1);
}
var memory = 0;
function mem(val)
{
if (val == 1 ) {document.keypad.list.value = " --> Memory In";
 memory = document.keypad.display.value * 1}
if (val == -1) {document.keypad.display.value = memory}
if (val == 0 ) {document.keypad.list.value = " Memory Erased";
 document.keypad.display.value = ""; memory = 0}
}
function message()
{
alert('\n\nSend your comments and suggestions to:\n\n ----> aag4@lehigh.edu <----');
}
function travel(link)
{
window.open(link,"calculator","toolbar=1,location=1,status=1,scrollbars=1,directories=1,copyhistory=1,menubar=1,resizable=1")
}
var screen=" ";
function eraser2()
{
var ans = confirm('\nDo you want to clear the entire CALCpad?\n');
if (ans) {screen = document.notes.junk.value; document.notes.junk.value = "";}
}
function copy()
{
document.notes.junk.value = document.keypad.list.value+"\n"+document.keypad.display.value+"\n"+document.notes.junk.value;
}
function help()
{
screen = document.notes.junk.value;
msg1 = "Following are some of the\ncalculator functions:\n";
msg2 = "\n(<-> M) - Erase Memory Contents\n(--> M) - Memory In\n(<-- M) - Memory Out";
msg3 = "\n(<--) - Erase last character\n(x^y) - X to the power of Y";
msg4 = "\n\nTo Go Back, click 'Restore CALCpad'";
document.notes.junk.value = "";
document.notes.junk.value = msg1 + msg2 + msg3 + msg4;
}
function restore()
{
document.notes.junk.value = "";
document.notes.junk.value = screen;
}
</SCRIPT>
<TABLE border=0 bgcolor="#FAF4FF" bordercolor="#9FBAD0" cellpadding="2" cellspacing="0">
 <TBODY>
 <TR>
 <TD align=middle rowSpan=2 vAlign=top>
<TABLE border=0 bgcolor="#F5ECFF">
 <TR>
 <TD align=middle rowSpan=2 vAlign=center bgcolor="#DBE4F2">
 <FORM name=keypad>
 <CENTER>
 
<TABLE border=1 cellPadding=2 cellSpacing=0 bgcolor="#DBE4F2" bordercolor="#808080">
<TBODY> 
<TR>
<TD align=middle colSpan=9 vAlign=center bgcolor="#006393"> 
<p align="center"><font color="#FFFF00" face="Arial" size="4"><B>WEB</B> <B>.Sci-CALCulator</B></font></p>
</TD>
</TR>
<TR>
<TD align=middle colSpan=6 vAlign=center><font size="2" face="Verdana"><INPUT name=list size=22 
value=" Start Punching!"> </font> </TD>
<TD align=middle colSpan=3 vAlign=center><INPUT name=alex1 onclick=eraser() type=button value=" CLEAR "></TD></TR>
<TR>
<TD align=middle colSpan=6 vAlign=center><font size="2" face="Verdana"><INPUT name=display 
size=22></font></TD>
<TD align=middle colSpan=2 vAlign=center><INPUT name=alex2 onclick=equal() type=button value=" = "></TD>
<TD align=middle vAlign=center><INPUT name=alex3 onclick=backer() type=button value=" <-- "></TD></TR>
<TR>
<TD align=middle vAlign=center><INPUT name=alex4 onclick=enter(1) type=button value=" 1 "></TD>
<TD align=middle vAlign=center><INPUT name=alex5 onclick=enter(2) type=button value=" 2 "></TD>
<TD align=middle vAlign=center><INPUT name=alex6 onclick=enter(3) type=button value=" 3 "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex7 onclick="calculate('/')" type=button value=" / "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex8 onclick=calc(1) type=button value=" sin "></TD>
<TD align=middle vAlign=center><INPUT name=alex9 onclick=calc(4) type=button value=" x? "></TD>
<TD align=middle vAlign=center><INPUT name=alex10 onclick=mem(0) type=button value="<->M"></TD></TR>
<TR>
<TD align=middle vAlign=center><INPUT name=alex11 onclick=enter(4) type=button value=" 4 "></TD>
<TD align=middle vAlign=center><INPUT name=alex12 onclick=enter(5) type=button value=" 5 "></TD>
<TD align=middle vAlign=center><INPUT name=alex13 onclick=enter(6) type=button value=" 6 "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex14 onclick="calculate('*')" type=button value=" * "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex15 onclick=calc(2) type=button value=cos></TD>
<TD align=middle vAlign=center><INPUT name=alex16 onclick=calc(7) type=button value=" x? "></TD>
<TD align=middle vAlign=center><INPUT name=alex17 onclick=mem(1) type=button value="--> M"></TD></TR>
<TR>
<TD align=middle vAlign=center><INPUT name=alex18 onclick=enter(7) type=button value=" 7 "></TD>
<TD align=middle vAlign=center><INPUT name=alex19 onclick=enter(8) type=button value=" 8 "></TD>
<TD align=middle vAlign=center><INPUT name=alex20 onclick=enter(9) type=button value=" 9 "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex21 onclick="calculate('-')" type=button value=" - "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex22 onclick=calc(3) type=button value="tan "></TD>
<TD align=middle vAlign=center><INPUT name=alex23 onclick=calc(6) type=button value="1/x "></TD>
<TD align=middle vAlign=center><INPUT name=alex24 onclick=mem(-1) type=button value="<-- M"></TD></TR>
<TR>
<TD align=middle vAlign=center><INPUT name=alex25 onclick=enter(0) type=button value=" 0 "></TD>
<TD align=middle vAlign=center><INPUT name=alex26 onclick="enter('.')" type=button value=dot></TD>
<TD align=middle vAlign=center><INPUT name=alex27 onclick=change() type=button value=" +|- "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex28 onclick="calculate('+')" type=button value=" + "></TD>
<TD></TD>
<TD align=middle vAlign=center><INPUT name=alex29 onclick=pie() type=button value=" pi "></TD>
<TD align=middle vAlign=center><INPUT name=alex30 onclick=calc(5) type=button value=" Ln "></TD>
<TD align=middle vAlign=center><INPUT name=alex31 onclick="calculate('p')" type=button value=" x^y "></TD></TR>
<TR>
<TD align=middle colSpan=9 vAlign=center></TD></TR>
<TR>
<TD align=middle colSpan=9 vAlign=center><B><font face="Arial" size="2"> </font><font face="Verdana" size="2"><INPUT name=c1 size=4>
</font><font face="Arial" size="3">
*X? + </font><font face="Verdana" size="2">  
<INPUT name=c2 size=4>
</font><font face="Arial" size="2"> </font><font face="Arial" size="3">*X +</font><font face="Arial" size="2">
</font><font face="Verdana" size="2">  
<INPUT name=c3 size=4>
</font><font face="Arial" size="2"> </font><font face="Arial" size="3">= 0</font><font face="Arial" size="2">
</font></B> 
<font face="Arial" size="2">  
				  <INPUT name=alex onclick=fsolve() type=button value=Solve><B> </B> 
</font> 
 </TD></TR></TBODY></TABLE></CENTER></TD>
 
</TR>
 </TABLE> 
<CENTER><INPUT name=alex onclick=help() type=button value=" Help ">   
 </CENTER></FORM></TD>
 
<TD align=middle vAlign=center bgcolor="#DBE4F2">
<center>
<B><font face="Arial" size="3" color="#000000">CALCpad</font></B>
</center>
</TD>
</TR>
 <TR>
 <TD align=middle vAlign=center>
 <FORM name=notes>

<FORM name=notes>
<TEXTAREA cols=40 name=junk rows=10 wrap=virtual>