Why do I keep getting an undefined function for 'deter'?

Question

Emily Gallagher 2019-9-24

0
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https://ww2.mathworks.cn/matlabcentral/answers/481899-why-do-i-keep-getting-an-undefined-function-for-deter

评论： James Tursa 2019-9-24

Trying to find the determinant of an upper triangular matrix without using the built-in det function. Why do I keep getting an undefined function error for 'deter'?

function d = deter (U)

n = 4;

A = rand(n,n);

d = prod(diag(U));

end

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James Tursa 2019-9-24

What is the purpose of creating the A matrix inside this function?

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Answer 1

KALYAN ACHARJYA 2019-9-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/481899-why-do-i-keep-getting-an-undefined-function-for-deter#answer_393306

编辑：KALYAN ACHARJYA 2019-9-24

在 MATLAB Online 中打开

function d=deter (U)
n=4;
A=rand(n,n);
d=prod(diag(U));
end

Save the function in new matlab file (save as deter.m), Next call the function from command window or another main script. Please note that you have pass the input arguments (U) to the function form command window or another main Matlab script as shown below.

Hope it helps!