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what is function to find out adjoint of matrix............is there any command.......

Asked by manoj saini on 29 Jan 2013
Latest activity Answered by milad yusefi on 20 Nov 2017
what is command to find adjoint of matrix

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3 Answers

Answer by Shashank Prasanna on 29 Jan 2013
 Accepted Answer

I don't think there is a function but you can always do:
det(A)*inv(A)

Answer by asuescun
on 15 Nov 2017

Hi, you can't use "det(A)*inv(A)" with a singular matrix to get its adjoint.

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Answer by milad yusefi on 20 Nov 2017

you can also use this function function [b]=adj(a) s=size(a); ac=a; if s(1)~=s(2) disp('input matrix must be square') else for i=1:s(1) for j=1:s(2) a(i,:)=[]; a(:,j)=[]; c(i,j)=det(a); a=ac; end end end for i=1:s(1) for j=1:s(2) if mod(i+j,2)==1 c(i,j)=-c(i,j); end end end b=c';

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