Good question. I do not remember any public discussion about
their removal, just the 6.0.0 release notes announcing it.
Probably this small module was considered as too basic, and so
useless, compared to features provided by Maxima or other symbolic
I would have agreed about its removal if the jewelish scimax Scilab
module would have been packaged for Windows as well, and
published on ATOMS for Scilab 6. But it is not currently the case.
The former symbolic module presented all its functions at the
same level. In my opinion, only solve(), trianfml() and trisolve()
were really useful, whereas the other addf(), subf(), mulf(),
rdivf(), ldivf() and cmb_lin() were rather internals.
This small module could be easily repackaged to highlight solve,
trianfml and trisolve, recompiled for Scilab 6, and pushed on
ATOMS, at almost no cost. IMO, its interest goes a bit beyond only