Hello ,
Here is another problem I bumped into. This is a part of the file:

Quite strange that augment itself produces a two column matrix but the assignment to a variable produces a nested matrix with two column matrix. I did not understand this and just tried to change the Optimization. It is Symbolic as you could see. When I change it to Numeric, everything was Ok:

The most problematic thing here is that If we just did not think to much and just put the YX variable in 2D plot, crash occurred:

Here is the SMath file
augment-symb-num.sm. Hope that this is not only on my computer.
Regards,
Radovan
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"