清空筛选条件
清空筛选条件

Finding missing array value of a singular matrix

1 次查看（过去 30 天）
Ollie
Ollie 2017-4-29
评论： Ollie 2017-4-29
How do I use matlab to find the value of x that makes the matrix A = [2,5,7;-2,3,-4;1,5,x] singular ie has determinant zero?

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2017-4-29
编辑：Stephen23 2017-4-29
A simple numerical solution using fzero:
>> fun = @(x)det([2,5,7;-2,3,-4;1,5,x]);
>> x = fzero(fun,0.1)
x =
4.4375
>> fun(x)
ans =
0

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by