morning guys out there...rite now i'm having problem on how to inverse a matrix using php code..i had the idea in my head, but i dunno how to transform it in a programming terms..
help me please...

A matrix or an array? Coding would be helpful. If it is an array, there is a simple solution.

<?php
$input = array ("php", 4.0, array ("green", "red"));
$result = array_reverse ($input);
?>

In $input, the values are:

<?php
$input[0] // returns "php"
$input[1] // returns 4.0
$input[2][0] // returns "green"
$input[2][1] // returns "red"
?>

<?php
$result[0][0] // returns "green"
$result[0][1] // returns "red"
$result[1] // returns 4.0 (still)
$result[2] // returns "php"
?>

If this isn't what you meant, please give some more info on what you do want.

tenks for giving me that.. but actually the problem is, i'm dealing with nxn matrix which need me to inverse it..i this kind of matrix..
[code] //B'-matrix to find the value of deltaDel
print ("B'-matrix<br>");
for($i=1;$i<=$totalbus;$i++)
{
if(($buscode[$i]==0)||($buscode[$i]==2))
{
for($j=1;$j<=$totalbus;$j++)
{
if(($buscode[$j]==0)||($buscode[$j]==2))
{
$B1matrix[$busnum[$i][$j]]=$matrix_imgpart[$i][$j];
print($B1matrix[$busnum[$i][$j]]." ");
}
}
}
print("<br>");
}
print("<br>");

//B''-matrix to find the value of deltaVolt
print ("B''-matrix");
for($i=1;$i<=$totalbus;$i++)
{
if($buscode[$i]==2)
{
for($j=1;$j<=$totalbus;$j++)
{
if($buscode[$j]==2)
{
$B2matrix[$busnum[$i][$j]]=$matrix_imgpart[$i][$j];
print($B2matrix[$busnum[$i][$j]]." ");
}
}
}
print("<br>");
}
print("<br>");
[code]

and now i have to inverse the matrix..another problem is, the matrix that im dealing with is not only 3x3 matrix..it could be 4x4 or 2x2.. so, i cant fixed the equation to inverse it.

really hope that u can help me to solve it..