Full version: jsB@nk » Calculation » Calculator » Calculator with memorial function
URL: https://www.javascriptbank.com/calculator-with-memorial-function.html
This JavaScript create a simple calculator with memorial function.
Full version: jsB@nk » Calculation » Calculator » Calculator with memorial function
URL: https://www.javascriptbank.com/calculator-with-memorial-function.html
<style>.cabutt{background-color: #FFEECC; color: #3366CC; width: 100%; height: 50; position: relative; border-style: solid; border-color: #FFEECC}.cdbutt{background-color: #000080; color: #FFEECC; height: 50; position: relative;border-style: solid; border-color: #000080}</style><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><script language="JavaScript"><!-- Startvar value1 = "", value2 = "", value3 = "0"var value4 = "done", num = 0, mvalue = 0; function nkey(i) { if (num == 1) { value1 = value2; value2 = value3; value3 = "" + i; value4 = "eidt"; num = 2; } else { if (value4 == "done" || value3 + "" == "0") { value3 = "" + i; value4 = "eidt"; } else { value3 += "" + i; } } more(); }function ptkey() { if (value4 != "point") { if (value4 == "done") { if (num != 1) { ckey(0); } nkey("0."); } else { value3 += "."; more(); } value4 = "point"; }} function more() { document.cform.V1.value = value1 + " " + value2 + " " + value3;}function fkey(j) { if (num != 1) { value2 = eval(value1 + value2 + value3); value1 = ""; value2 = round(value2); num = 1; value4 = "done"; } value3 = j; more();} function rkey(j) { if (num != 1) { if (j == "%") { value3 = value3 * 0.01; } if (j == "=") { value3 = eval(value1 + value2 + value3); value2 = ""; value1 = ""; num = 0; } value3 = round(value3); more(); value4 = "done"; }}function ckey(k) { if (k == 0) { if (value2 != "") { value3 = value2; } else { value3 = "0"; } value2 = value1; value1 = ""; if (num == 2) { num = 1; } else { num = 0; } } if (k == 1) { value3 = "0"; value2 = ""; value1 = ""; num = 0; } more(); value4 = "done"; }function mvkey(k) { if (num == 0) { if (k == "+") { mvalue = mvalue + eval(value3); } if (k == "-") { mvalue = mvalue - eval(value3); } mvalue = round(mvalue); setmemo(); value4 = "done"; }}function mckey(k) { if(k == "=") { if (num != 1) { ckey(0); } nkey(mvalue); value4 = "done"; } if (k == "c") { mvalue = 0; setmemo(); } }function setmemo() { document.cform.V2.value = ""; if (mvalue != 0) { document.cform.V2.value = "<M> " + mvalue + "; "; }}function sbkey() { value2 = altsb(value2 + ""); value3 = altsb(value3 + ""); more();} function altsb(sb) { if (sb == "") { value3 = - eval(value3) + ""; } if (sb == "+") { return "-"; } if (sb == "-") { return "+"; } if (sb == "*") { return "/"; } if (sb == "/") { return "*"; } return sb; }function round(rndval) { var full = rndval + "", endstr = ""; if (full.indexOf('.') < 0) { return rndval; } if (eval(full.substring(0, full.indexOf('.') + 9)) == 0) { return rndval; } var cutsize = full.length; if (full.indexOf('e') > 0 ) { cutsize = full.indexOf('e') - 1; endstr = full.substring(cutsize + 1, full.length); } var cutstr = full.substring(full.indexOf('.'), cutsize); cutsize = cutstr.length; if (cutsize > 9) { var addup = 1; full = full.substring(0, full.indexOf('.')); for (var x=0; x<cutsize - 1; x++) {addup *= 0.1;} cutstr = (addup*4 + eval(cutstr)) + ""; var cutlen = cutstr.length; if (cutstr.indexOf('e') != -1) { return rndval; } if (cutsize - cutlen > 4) { return eval(full + cutstr.substring(1, cutlen)) + endstr; } cutstr = cutstr.substring(0, cutstr.length - 2); cutstr = eval(cutstr) + ""; if (cutstr.indexOf('e') != -1) { return rndval; } if (cutlen - cutstr.length > 4) { return eval(full + cutstr.substring(1, cutstr.length)) + endstr; } } return rndval; }// END / Many more are available free online --></SCRIPT><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><table width="auto" height="350" border="0" align="center" cellpadding="25" cellspacing="1" bgcolor="silver" class="main0"> <tr> <td align="center" colspan="2" bgcolor="#FFFFFF"><table border="0" width="350" height="250" cellpadding="2" bgcolor="#FFCC99"><form class="liform" name="cform"> <tr> <td width="100%" bgcolor="#FFEECC" colspan="6" height="50"> <table border="0" width="100%" height="100%" cellspacing="0" cellpadding="0" bgcolor="#000080"> <tr> <td width="350" align="right" colspan="2"><nobr> <input type=button class="cdbutt" name="V2"> <input type=button class="cdbutt" name="V1"> </nobr></td> <tr> <td width="310" align="center" height="25" bgcolor="#FFEECC"> <nobr><font face="Arial" size="2"><a href="http://javascriptbank.com/">JavaScriptBank.com</a></font></nobr></td> <td width="40" height="25" bgcolor="#FFEECC"> </td> </tr> </table> </td> </tr> <tr> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="1" onClick="nkey(1)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="2" onClick="nkey(2)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="3" onClick="nkey(3)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="+" onClick='fkey("+")'></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="+/-" onClick="sbkey()"></td> <td width="100" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="C" onClick="ckey(1)"></td> </tr> <tr> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="4" onClick="nkey(4)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="5" onClick="nkey(5)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="6" onClick="nkey(6)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="-" onClick='fkey("-")'></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="M+" onClick='mvkey("+")'></td> <td width="100" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="CE" onClick="ckey(0)"></td> </tr> <tr> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="7" onClick="nkey(7)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="8" onClick="nkey(8)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="9" onClick="nkey(9)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="*" onClick='fkey("*")'></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="M-" onClick='mvkey("-")'></td> <td width="100" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="MC" onClick='mckey("c")'></td> </tr> <tr> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="." onClick="ptkey()" style="font-weight: bold"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="0" onClick="nkey(0)"></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="%" onClick='rkey("%")'></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="/" onClick='fkey("/")'></td> <td width="50" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="M" onClick='mckey("=")'></td> <td width="100" bgcolor="#FFEECC" height="50"><input class="cabutt" type=button value="=" onClick='rkey("=")'></td> </tr></form></table><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->