@Bill:
If the else clause is missing but the if condition is false then the
value of the if-then expression is the unique value of Void.
+1
I think an important though somewhat less technical addition to the
user guide concerning the meaning and use of the Void and Exit domains
would indeed be quite useful.
+1
(Maybe adding also something on None if this Type will still be around.
Somewhere near section 2.6 might be a good place.)
@ Waldek
The command line is not representative of FriCAS language.
OK, crystal clear.
The pedagogical problem is that, maybe not to scare the reader, the FricasUG is somehow
vague on the differences among interpreter and compiler. For instance note that the
chapter 5 (which raised my questions) is titled "Introduction to the FriCAS
Interactive Language", while it is presently more like an (incomplete) SPAD
reference.
riccardo
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