code:
- Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<script language = "javascript">
function sum(in1,in2)
{
document.forum1.ketqua.value=(eval(in1)+eval(in2));
}
function minus(in1,in2)
{
document.forum1.ketqua.value=(in1-in2);
}
function nhan(in1,in2)
{
document.forum1.ketqua.value=(in1*in2);
}
function chia(in1,in2)
{
document.forum1.ketqua.value=(in1/in2);
}
function sin1(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
document.forum1.ketqua.value=Math.sin(in1);
else
document.forum1.ketqua.value=Math.sin(in2);
if(in1!=""&&in2!="")
alert("Chi Nhap 1 O");
}
function cos1(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
document.forum1.ketqua.value=Math.cos(in1);
else
document.forum1.ketqua.value=Math.cos(in2);
}
function tan1(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
document.forum1.ketqua.value=Math.tan(in1);
else
document.forum1.ketqua.value=Math.tan(in2);
}
function cotg1(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
{
var a=Math.sin(in1),b=Math.cos(in1);
document.forum1.ketqua.value=(a/b);
}
else
document.forum1.ketqua.value=Math.cos(in1)/Math.sin(in2);
}
function max1(in1,in2)
{
document.forum1.ketqua.value=Math.max(in1,in2);
}
function min1(in1,in2)
{
document.forum1.ketqua.value=Math.min(in1,in2);
}
function fc(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
document.forum1.ketqua.value=(in1-32)/1.8;
else
document.forum1.ketqua.value=(in2-32)/1.8;
}
function cf(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
{
var a=in1*1.8;
document.forum1.ketqua.value=(eval(a)+eval(32));
}
else
{
var b=in2*1.8;
document.forum1.ketqua.value=(eval(b)+eval(32));
}
}
function ck(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
document.forum1.ketqua.value=(eval(in1)+eval(273,15));
else
document.forum1.ketqua.value=(eval(in2)+eval(273,15));
}
function bp(in1,in2)
{
if(in1!=""&&in2!="")
{
alert("Chi Nhap 1 O");
return false
}
if(in1!="")
document.forum1.ketqua.value=in1*in1;
else
document.forum1.ketqua.value=in2*in2;
}
</script>
</head>
<body>
<form name="forum1">
<b>Nhap So Thu Nhat</b>
<input type="text" name="input1"/><br />
<b>Nhap So thu hai</b>
<input type="text" name="input2"/><br />
<b>Chon Phep Tinh</b>
<input type="button" value="Cong" onclick="sum(input1.value,input2.value)"/>
<input type="button" value="Tru" onclick="minus(input1.value,input2.value)"/>
<input type="button" value="Nhan" onclick="nhan(input1.value,input2.value)"/>
<input type="button" value="Chia" onclick="chia(input1.value,input2.value)"/>
<input type="button" value="Sin" onclick="sin1(input1.value,input2.value)"/>
<input type="button" value="Cos" onclick="cos1(input1.value,input2.value)"/>
<input type="button" value="Tan" onclick="tan1(input1.value,input2.value)"/>
<input type="button" value="Max" onclick="max1(input1.value,input2.value)"/>
<input type="button" value="Min" onclick="min1(input1.value,input2.value)"/>
<input type="button" value="F->C" onclick="fc(input1.value,input2.value)"/>
<input type="button" value="C->F" onclick="cf(input1.value,input2.value)"/>
<input type="button" value="C->K" onclick="ck(input1.value,input2.value)"/>
<input type="button" value="Binh Phuong" onclick="bp(input1.value,input2.value)"/><br />
<b>Ket Qua</b>
<input type="text" name="ketqua" />
</form>
</body>
</html>
khi nào rảnh sẽ bổ sung tính năng giải phương trình :D