<script type="text/javascript">
var temp;
function w_onload()
{frm.txt.value=0;var sds = document.getElementById("dum");if(sds == null){alert("You are using a free package.\n You are not allowed to remove the copyright.\n");
document.getElementById("maindiv").style.display='none';}var sdss = document.getElementById("dumdiv");if(sdss == null){alert("You are using a free package.\n You are not allowed to remove the copyright.\n");} }
function addchar(input,character)
{
if(input.value == null || input.value == "0")input.value = character;
else
input.value += character;
}
function cancel_click()
{frm.txt.value=0;
}
function sin_click(obj)
{if(obj=='sin')var result=frm.txt.value;if(document.frm.deg[0].checked){result=result*Math.PI/180;frm.txt.value=Math.sin(result).toFixed(2);}if(document.frm.deg[1].checked)frm.txt.value=Math.sin(result).toFixed(2);
}
function cos_click(obj)
{if(obj=='cos')var result=frm.txt.value;if(document.frm.deg[0].checked){result=result*Math.PI/180;frm.txt.value=Math.cos(result).toFixed(2);}if(document.frm.deg[1].checked)frm.txt.value=Math.cos(frm.txt.value);
}
function tan_click(obj)
{if(obj=='tan')var result=frm.txt.value;if(document.frm.deg[0].checked){result=result*Math.PI/180;frm.txt.value=Math.tan(result).toFixed(2);}if(document.frm.deg[1].checked)frm.txt.value=Math.tan(frm.txt.value);
}
function resi_click()
{temp= frm.txt.value;frm.txt.value=1/temp;
}
function log_click()
{frm.txt.value=Math.log(frm.txt.value)/Math.LN10;
}
function sqr_click()
{temp=frm.txt.value;frm.txt.value=temp*temp;
}
function sqrt_click()
{frm.txt.value=Math.sqrt(frm.txt.value);
}
function equal_click()
{frm.txt.value=eval(frm.txt.value);
}
function exp_click()
{frm.txt.value=Math.exp(frm.txt.value);
}
function fac_click()
{var f=1;var i;var n=parseInt(frm.txt.value);for(i=1;i<=n;i++){f=f*i;}frm.txt.value=f;
}
function bks_click()
{var s;s=frm.txt.value;if(s>=1){var b=s.substr(0,s.length-1);frm.txt.value=b;}
}
function sign_click()
{if(isNaN(frm.txt.value)==false){if(frm.txt.value>0){ frm.txt.value=frm.txt.value*-1}else if(frm.txt.value<0){ frm.txt.value=frm.txt.value.replace('-','')}}
}
function ln_click()
{frm.txt.value=Math.log(frm.txt.value);
}
function lb_click()
{frm.txt.value=Math.log(frm.txt.value)/Math.LN2;
}
</script><style>
input[type="button"],button,.green_button
{
background:#468cd2;color: white;font-weight:bold;
cursor:pointer;
border-radius:.3em;
-moz-border-radius:.2em;
-webkit-border-radius:.2em;
-o-border-radius:.2em;
margin:10px 2px;
border:none;
}
.frms
{margin:0 auto;
padding:10px;border-radius:.3em;
-moz-border-radius:.3em;-webkit-border-radius:.3em;
-o-border-radius:.3em;font-family:Tahoma, Geneva, sans-serif;color:#333;font-size:.9em;
line-height:1.2em;
}
.frms input[type="text"],[type="password"],[type="file"],textarea,select
{
width:99%;background:#fff;border:#ddd 1px solid;
border-radius:.35em;-moz-border-radius:.35em;
-webkit-border-radius:.35em;-o-border-radius:.35em;
padding:0 .5%;margin-top:5px;margin-bottom:15px;
height:35px;
}
.frms input:hover,textarea:hover,select:hover
{box-shadow:#dae1e5 0px 0px 5px;-moz-box-shadow:#dae1e5 0px 0px 5px;
-webkit-box-shadow:#dae1e5 0px 0px 5px;-o-box-shadow:#dae1e5 0px 0px 5px;
}
.frms input:focus,textarea:focus,select:focus
{-webkit-box-shadow: inset 7px 4px 7px -7px rgba(0,0,0,0.42);
-moz-box-shadow: inset 7px 4px 7px -7px rgba(0,0,0,0.42);
box-shadow: inset 7px 4px 7px -7px rgba(0,0,0,0.42);border:#9d9983 1px solid;
}
.btn
{
width:174px;
word-wrap: normal !important;
}
@media screen and (max-width: 980px)
{
.btn
{
word-wrap: normal !important;
width:160px;
}
}
</style>
<body onload="w_onload()"><div align='center'><h4>Online Scientific Calculator</h4></div>
<form name="frm" class='frms noborders' action="" id='maindiv'> <center> <table> <tr><td>
<input type="text" maxlength="10" class='input_text_class' name="txt" ><br /> </tr>
<tr><td> <font size=1.5px><input type="radio" name=deg value="Degree">Degrees
<input type="radio" name=deg value="Radian" checked>Radians
<span id="dumdiv" align="center" style=" font-size: 10px;color: #dadada;">
<a id="dum" style="padding-right:0px; text-decoration:none;color: green;text-align:center;" href="https://www.emexee.com">e</a>
</span>
</font> </tr>
<tr><td> <input type="button" name="sqr" value="sqr" style="height:42px" onclick="sqr_click()" class='btn'>
<input type="button" name="sqt" value="sqt" style="height:42px" onclick="sqrt_click()" class='btn'><input type="button" name="exp" value="exp" style="height:42px" onclick="exp_click()" class='btn'><input type="button" name="fac" value="x!" style="height:42px" onclick="fac_click()" class='btn'><input type="button" name="bks" value="bks" style="height:42px" onclick="bks_click()" class='btn'><input type="button" name="cancel" value="clr" style="height:42px" onclick="cancel_click()" class='btn'> </td></tr>
<tr><td> <input type="button" name="one" value="1" style="height:42px" onclick="addchar(this.form.txt,'1')" class='btn'>
<input type="button" name="two" value="2" style="height:42px" onclick="addchar(this.form.txt,'2')" class='btn'><input type="button" name="three" value="3" style="height:42px" onclick="addchar(this.form.txt,'3')" class='btn'><input type="button" name="add" value="+" style="height:42px" onclick="addchar(this.form.txt,'+')" class='btn'><input type="button" name="sin" value="sin" style="height:42px" onclick="sin_click('sin')" class='btn'>
<input type="button" name="log" value="log" style="height:42px" onclick="log_click()" class='btn'> </td></tr>
<tr><td> <input type="button" name="four" value="4" style="height:42px" onclick="addchar(this.form.txt,'4')" class='btn'>
<input type="button" name="five" value="5" style="height:42px" onclick="addchar(this.form.txt,'5')" class='btn'><input type="button" name="six" value="6" style="height:42px" onclick="addchar(this.form.txt,'6')" class='btn'><input type="button" name="sub" value="-" style="height:42px" onclick="addchar(this.form.txt,'-')" class='btn'><input type="button" name="cos" value="cos" style="height:42px" onclick="cos_click('cos')" class='btn'>
<input type="button" name="ln" value="ln" style="height:42px" onclick="ln_click()" class='btn'> </td></tr>
<tr><td> <input type="button" name="seven" value="7" style="height:42px" onclick="addchar(this.form.txt,'7')" class='btn'>
<input type="button" name="eight" value="8" style="height:42px" onclick="addchar(this.form.txt,'8')" class='btn'><input type="button" name="nine" value="9" style="height:42px" onclick="addchar(this.form.txt,'9')" class='btn'><input type="button" name="mul" value="*" style="height:42px" onclick="addchar(this.form.txt,'*')" class='btn'><input type="button" name="tan" value="tan" style="height:42px" onclick="tan_click('tan')" class='btn'>
<input type="button" name="lb" value="lb" style="height:42px" onclick="lb_click()" class='btn'> </td></tr>
<tr><td> <input type="button" name="zero" value="0" style="height:42px" onclick="addchar(this.form.txt,'0')" class='btn'>
<input type="button" name="dot" value="." style="height:42px" onclick="addchar(this.form.txt,'.')" class='btn'><input type="button" name="equal" value="=" style="height:42px" onclick="equal_click()" class='btn'><input type="button" name="div" value="/" style="height:42px" onclick="addchar(this.form.txt,'/')" class='btn'><input type="button" name="sign" value="+/-" style="height:42px" onclick="sign_click()" class='btn'><input type="button" name="resi" value="1/x" style="height:42px" onclick="resi_click()" class='btn'> </td></tr>
</table>
</center>
</form>
</body>
