MATLAB Answers

show det(A) = det(A') ?

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Majid Alomari
Majid Alomari on 18 Nov 2020
Commented: Matt J on 18 Nov 2020
A=[3 4;2 1]
det(A)=det(A')

Answers (1)

Matt J
Matt J on 18 Nov 2020
But it's not true!
A=rand(200);
isequal(det(A),det(A.'))
ans = logical
0
  1 Comment
Matt J
Matt J on 18 Nov 2020
Fine, it's true within floating point precision:
A=rand(200);
percent_difference=(det(A)-det(A.'))/det(A)*100
percent_difference = 4.1836e-11

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