[Axiom-developer] what is meaining of % in SPAD

[daly]

the spad code used to use $ everywhere. 
however when the new compiler (aka aldor) was coded it was decided
to rename $ to % in the spad code. there is a C-related reason for this
but memory fails me at the moment. they are not interchangeable.

>in algebra (.spad file) code % means "this domain"
>in the interpreter % means the last value, %%(2) means the second result, etc
>%e is a special constant name

t