[Gretl-devel] Translation doubt "rank-deficient"

Dear specialists in Math and Anglo to Romanic languages translations, In this case translation of "rank-deficient" (matrix) to Portuguese. I am having trouble in finding a good translation for: Warning: Jacobian is rank-deficient This is the best I got (I'll keep original words when in doubt): Aviso: a Jacobiana não é linearmente independente (é "rank-deficient") Direct translation for the above could be: Warning: the Jacobian is not linearly independent (it is "rank-deficient") I know that the rows or columns of the Jacobian matrix are not linear independent, but what do you think about my choice for the translation? Note: I have found direct translation in Portuguese used in Brazil, for "rank-deficient" as "deficiente de posto" but it does not sound right to me. Thank you very much and keep doing a good job! Hélio