# How to Find the Determinant of a Matrix in MATLAB using for loop. i don't want to use the actual code.

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maede mandi
on 10 Oct 2021

Commented: Walter Roberson
on 10 Oct 2021

### Accepted Answer

Walter Roberson
on 10 Oct 2021

Edited: Walter Roberson
on 10 Oct 2021

if isscalar(YourArray) || isempty(YourArray)

total = YourArray;

else

total = 0;

for R = 1 : number_of_rows

for C = 1 : number_of_columns

total = total + SomeValue * YourArray(R,C) * YourDeterminentFunction(YourArray with Row #R and Column #C crossed out)

end

end

end

SomeValue is +1 or -1 but you need to figure out which.

##### 2 Comments

Walter Roberson
on 10 Oct 2021

Use a recursive function.

z(i,j)

Determinents and cofactors are scalar. What is your reasoning for storing something there?

(There are reasons to want to store items as you go through, but I suspect your thoughts are about something else completely.)

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