> | Suppose I test with students : > | star (x, y) == x + y - x*y > | > | Then I prefer the command (x *%* y) *%* z to star (star (x, y), z)... > > If you use domains, you can overload + and *.
Sometimes I also wish to be able to introduce new operators. Unfortunately, they are fixed in SPAD as well as in Aldor. If I am allowed to dream then I would like to be able to write something like (x: A) \oplus (y: A): A == ... (with \oplus being the actual (unicode) character for that operator). Of course that raises lots of questions and I am not 100% sure whether it would be a good idea to 1) allow unicode in identifiers 2) being able as a user to introduce new infix/postfix operators with assigned precedences Ralf ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ open-axiom-devel mailing list open-axiom-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/open-axiom-devel