WP34s: date functions and negative years

[Dieter]

(01-17-2015 07:05 PM)Bit Wrote:  Related thread: [WP 34S] Julian day number conversion bug

Ah, thank you - I didn't remember that one. I hope this thread encourages the 34s team to change the weird and inconsistent behaviour I described. IMHO the calculator should either throw an error or return a correct result. The latter of course is the preferred solution. There is no third option - not for a calculator on the level of a 34s. And there is a reason why the JD count starts at JD 0 = 1 January 4713 B.C., so arguing that "no one needs date calculations in this range" is not exactly convincing.

In the old thread Pauli said:

Quote:(...) I could lie about the Julian calendar's reach back in time and ignore the strange stuff

That's not "lying". The correct term is "proleptic". ;-) For B.C. years the Julian calendar simply is assumed to behave the way it did after 8 AD.

Dieter