📄 matrix.htm
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<HTML><HEAD>
<TITLE></TITLE>
<META content="Microsoft FrontPage 6.0" name=GENERATOR>
<META http-equiv=Content-Type content="text/html; charset=UTF-8"></HEAD>
<BODY>
注意格式：用“,”隔开每一行中的各元素用“;"隔开行（注意","和“，”有区别！一如入法一定选<b><font
color=#ff0000>英文</font></b>输入法！）
<table height=336 cellSpacing=1 width=824 border=1>
<tr>
<td width=274 rowSpan=5>输入矩阵：<textarea id=TEXTAREA1 rows=17 cols=30 name="M_1">
1/1,2/1,3/1;
2/1,1/1,2/1;
1/1,3/1,3/1end
注意end的e前一定不能加“;”
输入法请选择英文输入法！</textarea></td>
<td width=113 height=104> </td>
<td width="397" rowspan="5"> <textarea id=TEXTAREA2 rows=19 cols=45 name="M_1R">
</textarea></td></tr>
<tr>
<td width=113 height=46>
<input type=button value="其行列式 = " name=Sq_M_Det onclick = "DET(M_1.value,M_1R,L)"></td></tr>
<tr>
<td width=113>
<input type=button value = "其逆矩阵为 " name="Sq_M_Re" onclick = "RE(M_1.value,M_1R,L)"></td></tr>
<tr>
<td width=113 height=41>
<input id=Button1 onclick=MSIMPLE(M_1.value,M_1R,L) type=button value=化为阶梯矩阵 name=Sq_M_S></td></tr>
<tr>
<td width=113 height=84> </td>
</tr>
</table>
<table height=259 width=863 border=1>
<tr>
<td width=227 height=253 rowSpan=5>这里输入矩阵A<textarea id=TEXTAREA3 rows=15 cols=27 name="M_21">
-0.75,0.75,0.25;
-1,0,1;
1.25,-0.25,-0.75end
注意end的e前一定不能加“;”
输入法请选择英文输入法！</textarea>：</td>
<td width=332 height=253 rowSpan=5>这里输入矩阵B<textarea id=TEXTAREA4 rows=15 cols=37 name="M_22">
1,2,3;
4,5,6;
7,8,9end
注意end的e前一定不能加“;”
输入法请选择英文输入法！</textarea></td>
<td width=68 height=73></td>
<td width=208 height=253 rowSpan=5> <textarea id=TEXTAREA5 rows=15 cols=26 name="M_23">
</textarea></td></tr>
<tr>
<td width=68 height=49><input type=button value="A-B= " name=A_B_M onclick = "MINUS(M_21.value,M_22.value,M_23,L)"></td></tr>
<tr>
<td height="51" width="68">
<input type=button value="A+B= " name=A_B_Add onclick = "ADD(M_21.value,M_22.value,M_23,L)"></td></tr>
<tr>
<td width=68 height=44><input type=button value="A*B= " name=A_B_Mu onclick = "MULTIPLY(M_21.value,M_22.value,M_23,L)"></td></tr>
<tr>
<td width=68 height=88> </td>
</tr></table>
<a id = "L"></a>
<script language = "javascript" src ="matrix_files/numeric_calculate.js"></script>
<script language = "javascript" src = "matrix_files/matrix_calculate.js"></script>
<script language = "javascript">
function DET(str,T)
{
var x = To_Matrix(str);
var r = M_Det(x);
var s = "";
s += r.N+"/"+r.D+"="+(r.N/r.D);
T.value = s;
}
function RE(str,T,Lable)
{
var x = To_Matrix(str);
var m = M_Re(x);
var s = Matrix_To_S(m);
T.value = s;
Lable.innerHTML = Matrix_To_HTML(m);
}
function ADD(str1,str2,T,Lable)
{
var a = To_Matrix(str1);
var b = To_Matrix(str2);
var m = M_Add(a,b);
var s = Matrix_To_S(m);
T.value = s;
Lable.innerHTML = Matrix_To_HTML(m);
}
function MINUS(str1,str2,T,Lable)
{
var a = To_Matrix(str1);
var b = To_Matrix(str2);
var m = M_Add(a,M_C_Multiply(new Fraction(-1,1),b));
var s = Matrix_To_S(m);
T.value = s;
Lable.innerHTML = Matrix_To_HTML(m);
}
function MULTIPLY(str1,str2,T,Lable)
{
var a = To_Matrix(str1);
var b = To_Matrix(str2);
var m = M_M_Multiply(a,b);
var s = Matrix_To_S(m);
T.value = s;
Lable.innerHTML = Matrix_To_HTML(m);
}
function MSIMPLE(str,T,Lable)
{
var x = To_Matrix(str);
var m = M_Simple(x);
var s = Matrix_To_S(m);
T.value = s;
Lable.innerHTML = Matrix_To_HTML(m);
}
</script>
</BODY></HTML>
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