Why does MATLAB do this?

I have my A matrix as-

A = [5 -3 7;1 0 -6;-4 8 9];

I want to show that

transpose(inv(A)) = inv(transpose(A))

but when i do,

transpose(inv(A)) == inv(transpose(A))

it shows as not equal, even though i know for a fact that it definitely is. Please help.

Answer 1

[David Hill]

floating point error

isequal(round(transpose(inv(A)),15),round(inv(transpose(A)),15));

[Robin Morgan]

Hi David,

Thank you so much for your answer, would you be so kind to explain, whar is 'round' and '15' that you have used in the above command?

EDIT: I undertood what is floating point error and Round, could you please explain the '15' you have used there.

Thank you so much,

Robin

[David Hill]

rounds to the fifteenth decial place

[Robin Morgan]

Ok got it, Thank you so much David!