(05-20-2016 10:22 AM)DrD Wrote: I tried CONJ(x) using upper case and lower case. In your posting, the eqn uses lower case, conj(x). The upper case version worked. The lower case version returns an empty list. Have you tried your original equation, using upper case CONJ(x), (as shown in the toolbox, and help description)?

Yes I have tried this, but lower case and upper case version both give an empty list with the original equation. It only works after rearranging the equation as described above. Thanks for your advise.