(1 2) = matrix A
(2 4)
invert matrix (a) (wrong!) result is :
(0 .5)
(.5 0)
witn no wranig from vensim !
How to check the problem ?
matrix algebra (bis)
Matrix inversion
Verifying if determinant is equal to ZERO.
Logically Vensim should not be able to find the inverse algebrically, because it needs to divize values by the determinant.
Vensim problably uses some numerical algorithm that does not work with this condition.
Regards.
J.J. Laublé
Logically Vensim should not be able to find the inverse algebrically, because it needs to divize values by the determinant.
Vensim problably uses some numerical algorithm that does not work with this condition.
Regards.
J.J. Laublé