Michael Somos on Tue, 7 Jan 2003 14:30:03 -0500 |
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gp: gcd(0) error message unhelpful |
pari-dev, Bill wrote : > Giving one argument is valid iff it is a vector. Okay, you are right, however, the documentation is silent on what happens in the case gcd(1) or gcd(x). Perhaps it should just return what it is given as a harmless response. It would be consistent with some other functions that way. > Using "associative (gcd,lcm,chinese)" is wrong because we can add new functions > at any time, and we will certainly forget to update the list. Perhaps I am missing something here. I thought the purpose of PARI-GP was to help users of the program to perform computations. Having unhelpful error messages is not a desired behavior. The word "associative" is distinctly unhelpful without some kind of qualifier. You are welcome to come up with something, but for now "associative (gcd,lcm,chinese)" is an easy fix. It conveys the general idea, and will be unlikely to change in future. Shalom, Michael