Inconsistency

[whilealive]

Thanks for the quick replies. This helps me a lot.

Quote:"Simply wrong": no. Ever since the HP implemented the brand-new IEEE standard for Infinity and Not-a-Number in the HP-71B, HP's most advanced calculators have all returned results like these, because that's what the standard specifies.

Well, I don't know if following a floating point standard is some reason for correctness. But I guess we are talking about two different types of correctnesses here. Of course I can accept the implementation of the standard even though it will be hard to teach the pupils why their device does such "very bad" things as dividing by 0. I'll do my best.