Phiên bản đầy đủ: jsB@nk » Tính toán » Máy tính » Máy tính đa chức năng
URL: https://www.javascriptbank.com/advanced-calculator.html
Hiệu ứng tạo ra một máy tính đa chức nãng, ngoài các phép toán thông thường, máy tính còn có thể tính sin, cos, cãn thức...
Phiên bản đầy đủ: jsB@nk » Tính toán » Máy tính » Máy tính đa chức năng
URL: https://www.javascriptbank.com/advanced-calculator.html
<SCRIPT>LastOper = '';TempVal = 0;NewNum = 'Y';Memval = 0;Dotused = "N";Curroption = 4;Maxoption = 19;FirstinXonY = '';Statelements = [0];n = 0;Ave = 0;Max = 1.1111111234;Min = 1.1111111234;Dummymaxmin = 1.1111111234;Sum = 0;additionalfunctions = ["x^2", "2^x", "x^y", "x^3", " n! ", "Log", " Pi ", " h ", "Tan", "Cot", "Sin", "Cos", "Add", "Sum", "Ave", "Max", "Min", " n ", "Clr St", "Sta"]; function backspace() { strlen = document.calc.Results.value.length; if (strlen > 1 && document.calc.Results.value != "0."){document.calc.Results.value = document.calc.Results.value.substring(0,strlen-1);} document.calc.EQ.focus();}function Onediv(){ if (document.calc.Results.value == '0.') { document.calc.Results.value = "Can't Devide By 0"; } else { document.calc.Results.value = 1 / document.calc.Results.value; NewNum = "Y"; } document.calc.EQ.focus();}function MoreOptions(){ if (Curroption > Maxoption) {Curroption = 0;} document.calc.opt1.value = additionalfunctions[Curroption++]; if (Curroption > Maxoption) {Curroption = 0;} document.calc.opt2.value = additionalfunctions[Curroption++]; if (Curroption > Maxoption) {Curroption = 0;} document.calc.opt3.value = additionalfunctions[Curroption++]; if (Curroption > Maxoption) {Curroption = 0;} document.calc.opt4.value = additionalfunctions[Curroption++]; document.calc.EQ.focus();}function Advfunction(Pos){ Pos += Curroption; Pos -= 4; if (Pos < 0) {Pos = Maxoption + Pos;} if (Pos == 0) {document.calc.Results.value *= document.calc.Results.value;} if (Pos == 1) { Temp = 1; for (var I = 0 ;I < document.calc.Results.value; I++) { Temp *= 2; } document.calc.Results.value = Temp; } if (Pos == 2) { if (FirstinXonY == '') { FirstinXonY = document.calc.Results.value; } else { Temp = FirstinXonY; for (var I = 1 ;I < document.calc.Results.value; I++) { Temp *= FirstinXonY; } document.calc.Results.value = Temp; FirstinXonY = ''; } } if (Pos == 4){Temp = 0; for (var I = 1; I <= document.calc.Results.value;I++) {Temp += I} document.calc.Results.value = Temp;} if (Pos == 6){document.calc.Results.value = 3.14159265359;} if (Pos == 12) { Statelements[++n] = document.calc.Results.value; Expres = "Sum = + +" + Sum + " + " + "+" + document.calc.Results.value; eval(Expres); Ave = Sum/n; Max = 1 * Max; Min = 1 * Min; if (Max < document.calc.Results.value || Max == Dummymaxmin) {Max = document.calc.Results.value;} if (Min > document.calc.Results.value || Min == Dummymaxmin) {Min = document.calc.Results.value;} } if (Pos == 13){document.calc.Results.value = Sum;} if (Pos == 14){document.calc.Results.value = Ave;} if (Pos == 15){if (n > 0) {document.calc.Results.value = Max;}} if (Pos == 16){if (n > 0) {document.calc.Results.value = Min;}} if (Pos == 17){document.calc.Results.value = n;} if (Pos == 18) { Statelements = [0]; n = 0; Ave = 0; Max = 1.1111111234; Min = 1.1111111234; Dummymaxmin = 1.1111111234; Sum = 0; } if (Pos == 19) { if (n > 0) { myWindow = window.open("", "newwin", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,copyhistory=0,width=200,height=180,left=400,top=300"); myWindow.document.open(); myWindow.document.write("<HTML><HEAD>"); myWindow.document.write("<TITLE>Statistics</TITLE>"); myWindow.document.write("</HEAD><FORM><BODY BGCOLOR=#FFFFFF TEXT=black>\n<CENTER>"); myWindow.document.write("<TABLE ALIGN=CENTER>"); myWindow.document.write("<TR><TD><B>n</B></TD><TD>: " , n , "</TD></TR>"); myWindow.document.write("<TR><TD><B>Sum</B></TD><TD>: ", Sum, "</TD></TR>"); myWindow.document.write("<TR><TD><B>Ave</B></TD><TD>: ", Ave, "</TD></TR>"); myWindow.document.write("<TR><TD><B>Max</B></TD><TD>: ", Max, "</TD></TR>"); myWindow.document.write("<TR><TD><B>Min</B></TD><TD>: ", Min, "</TD></TR>"); myWindow.document.write("</TABLE>"); myWindow.document.write(" <BR><INPUT TYPE='SUBMIT' VALUE='OK' onClick='window.close()'</FORM>\n</CENTER>"); myWindow.document.write("</BODY></HTML>"); myWindow.document.close(); } else { myWindow = window.open("", "newwin", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,copyhistory=0,width=200,height=180,left=400,top=300"); myWindow.document.open(); myWindow.document.write("<HTML><HEAD>"); myWindow.document.write("<TITLE> No Statistics</TITLE>"); myWindow.document.write("</HEAD><FORM><BODY BGCOLOR=#FFFFFF TEXT=BLACK>\n<CENTER>"); myWindow.document.write("<U><B>No Statistics</B></U><BR><BR>You did not add any item<BR>to the statistics<BR>To add items, use The<BR>'Add' Button"); myWindow.document.write("<BR><BR><INPUT TYPE='SUBMIT' VALUE='OK' onClick='window.close()'</FORM></CENTER>"); myWindow.document.write("</BODY></HTML>"); myWindow.document.close(); } } NewNum = 'Y';} function SQRT(){ document.calc.Results.value = sqrt( document.calc.Results.value); NewNum = "Y"; document.calc.EQ.focus();}function Percent(){ document.calc.Results.value *= TempVal / 100; Dotused = "N"; NewNum = "Y"; document.calc.EQ.focus();} function Oper(OP){ if (LastOper == "+") { num1 = document.calc.Results.value; Command = eval ("'+' + num1 + '+' + TempVal"); document.calc.Results.value= eval (Command); } if (LastOper == "-") { num1 = document.calc.Results.value; Command = "(document.calc.Results.value = TempVal - num1)"; eval (Command); } if (LastOper == "*") { num1 = document.calc.Results.value; Command = "(document.calc.Results.value = TempVal * num1)"; eval (Command); } if (LastOper == "/") { if (document.calc.Results.value == '0.') { document.calc.Results.value = "Can't Devide By 0"; } else { num1 = document.calc.Results.value; Command = "(document.calc.Results.value = TempVal / num1)"; eval (Command); } } if (OP != "=") { document.calc.oper.value = " " + OP; } else { document.calc.oper.value =""; } NewNum = "Y"; LastOper = OP; TempVal = document.calc.Results.value ; document.calc.EQ.focus(); FirstinXonY = '';} function Analyzethis(Key){ if (Key >= "0" && Key <= "9" ) { Digit(Key); } if (Key == "*" || Key == "-" || Key == "\\" || Key == "+" || Key == "=") { Oper(Key); } document.calc.EQ.focus();} function Memory(Mode){ if (Mode == "Clear") { document.calc.Mem.value=""; Memval = 0; } if (Mode == "Set") { document.calc.Mem.value = "M"; Memval = document.calc.Results.value; } if (Mode == "Add") { document.calc.Mem.value = "M"; Command = eval("'+' + document.calc.Results.value + '+' + Memval"); Memval = eval (Command); } if (Mode == "Read") { document.calc.Results.value = Memval; NewNum = "Y"; } document.calc.EQ.focus();}function Dot(){ if (NewNum == "Y") { document.calc.Results.value = "0."; Dotused = "Y"; NewNum = "N"; } if (Dotused == "N") { document.calc.Results.value += "."; Dotused = "Y"; } document.calc.EQ.focus();} function Changesign(){ document.calc.Results.value *= -1; document.calc.EQ.focus();}function Digit(DG){ if (NewNum == "Y") { document.calc.Results.value=DG; Dotused = "N"; } else { document.calc.Results.value= document.calc.Results.value + DG; } if (document.calc.Results.value == '0') { document.calc.Results.value = '0.' } else { NewNum = "N"; } document.calc.EQ.focus();}function Clear (Type){ document.calc.Results.value = '0.'; NewNum = 'Y'; if (Type == "ALL") { document.calc.oper.value =""; LastOper = ''; TempVal = 0; } document.calc.EQ.focus();}</SCRIPT><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><BODY onload=document.calc.EQ.focus()><FORM name=calc><TABLE border=5> <TBODY> <TR> <TD colSpan=6><INPUT align=right name=Results onfocus=this.blur() size=19 value=0.> <INPUT align=center name=oper onfocus=this.blur() size=1> </TD></TR> <TR> <TD align=middle><INPUT maxLength=1 name=Mem onfocus=this.blur() size=1></TD> <TD align=middle colSpan=2><INPUT onclick=backspace() type=button value=BkSp></TD> <TD align=middle colSpan=2><INPUT onclick="Clear('Res')" type=button value=" CE "></TD> <TD align=middle><INPUT onclick="Clear('ALL')" type=button value=" C "></TD></TR> <TR> <TD align=middle><INPUT onclick="Memory('Clear')" type=button value=MC></TD> <TD align=middle><INPUT name=D7 onclick=Digit(7) type=button value=" 7 "></TD> <TD align=middle><INPUT name=D8 onclick=Digit(8) type=button value=" 8 "></TD> <TD align=middle><INPUT onclick=Digit(9) type=button value=" 9 "></TD> <TD align=middle><INPUT onclick=" Oper('/') " type=button value=" / "></TD> <TD align=middle><INPUT onclick=SQRT() type=button value=sqr></TD></TR> <TR> <TD align=middle><INPUT onclick="Memory('Read')" type=button value=MR></TD> <TD align=middle><INPUT onclick=Digit(4) type=button value=" 4 "></TD> <TD align=middle><INPUT onclick=Digit(5) type=button value=" 5 "></TD> <TD align=middle><INPUT onclick=Digit(6) type=button value=" 6 "></TD> <TD align=middle><INPUT onclick=" Oper('*')" type=button value=" * "></TD> <TD align=middle><INPUT onclick=Percent() type=button value=" % "></TD></TR> <TR> <TD align=middle><INPUT onclick="Memory('Set')" type=button value=MS></TD> <TD align=middle><INPUT onclick=Digit(1) type=button value=" 1 "></TD> <TD align=middle><INPUT onclick=Digit(2) type=button value=" 2 "></TD> <TD align=middle><INPUT onclick=Digit(3) type=button value=" 3 "></TD> <TD align=middle><INPUT onclick="Oper('-')" type=button value=" - "></TD> <TD align=middle><INPUT onclick=Onediv() type=button value=1/x></TD></TR> <TR> <TD align=middle><INPUT onclick="Memory('Add')" type=button value=M+></TD> <TD align=middle><INPUT onclick=Digit(0) type=button value=" 0 "></TD> <TD align=middle><INPUT onclick=Changesign() type=button value=+/-></TD> <TD align=middle><INPUT onclick=Dot() type=button value=" . 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