Result is Number1 * Number2
which should be preferred for portability.
The result is of type breal if any of the arguments is a breal, else float if any of the arguments is a float, else rational if any of the arguments is a rational. Only when both arguments are integers is the result an integer.
In coroutining mode, if Number1 or Number2 are uninstantiated, the call to */3 is delayed until these variables are instantiated.
Success:
*(5, 2, 10).
*(5, -2.0, -10.0).
Fail:
*(1, 2, 3).
*(5, 2, 10.0).
*(5, 2.0, 10).
Error:
*(A, 2, 6). (Error 4).
*(1, 2, 3.0). (Error 5).
*(4 + 2, 2, 12). (Error 24).
*(5, 2, r). (Error 24).