I want to find vector of determinants

a= 1 x 4 vector

b= 1 x 4 vector

c= 1 x 4 vector

d= 1 x 4 vector

-my code-

 detvector=det([a b c d]);

-I want to get detvector=[det([a(1) b(1); c(1) d(1)]),det([a(2) b(2); c(2) d(2)]),det([a(3) b(3) ;c(3) d(3)]),det([a(4) b(4); c(4) d(4)])]. But my code doesn't works. How can I solve it?

Answer 1

[Azzi Abdelmalek]

Your code is correct, you can use arrayfun function

out=arrayfun(@(x) det([a(x) b(x);c(x) d(x)]),1:numel(a))

Answer 2

[Matt J]

detvector = a.*d - b.*c