如何在Matlab(或Maple)中用矩阵求解方程?

时间:2015-05-19 18:24:30

标签: matlab matrix microsoft-dynamics

我试图在Matlab和Maple中解决以下等式。 它涉及基于2自由度剪切的建筑物理想化的质量,刚度和阻尼矩阵的推导。

我需要从:

解决质量矩阵M.

E'.M.E = I E = [0.459 0.834;0.888 -0.551]I = [1 0;0 1]

从以下方面解决Matrix K:

带有E'.K.E = W²

W² = [26.39² 0;0 73.83²]

从以下方法解决Matrix C:

E'.C.E = 2.Z.WW = [26.39 0;0 73.83]Z = [0.017 0;0 0.009]

谢谢

1 个答案:

答案 0 :(得分:0)

你试过了吗?

$rows = array();
$stmt = $dbconnection->query("SELECT * FROM TABLE_NAME WHERE data_field LIKE 'data_selection'");
if ($stmt) {
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
    array_push($rows, $row);

var_dump($row); // to review output

    if ($row['something '] == NULL) {
        $highlights = $row;
            } elseif ($row['something'] == 'selection2') {
        $highlightsarray = array("gridHighlights" => 'text option 2 to display on site');
        $highlights = $row + $highlightsarray;
            } elseif ($row['something'] == 'selection1') {
        $highlightsarray = array("gridHighlights" => 'text option 1 to display on site');
        $highlights = $row + $highlightsarray;
    }
    $fields = $highlights; // this is a placeholder for other if statements I need to add (like $fields = $highlights + $anotherIfStatement;)
    $output .= $modx->getChunk('chunk_name', $fields);

}
}
return $output;
}