Finding row entries that are not equal?

Hello everyone,

I have a matrix and I would like to find all of the rows such that the entry in the first column does not match the entry of the second column.

Background: I am running some finite element code. I am finding all entries of the stiffness matrix that are positive, but in particular I want to find the stiffness matrix off-diagonal entries that are positive.

Thank you in advanced!

Andrew

Answer 1

[madhan ravi]

matrix(:,1) ~= matrix(:,2)

[Andrew Miller]

Thank you. If I set this to a l=matrix(:,1) ~= matrix(:,2), then I can find(l==1) will give back the entries desired.

Thanks!