[long and fussy] But what do these operators _mean_?

Thomas Wouters thomas at xs4all.net
Fri Jul 21 02:48:48 EDT 2000


On Fri, Jul 21, 2000 at 01:33:36AM +0000, Edward Jason Riedy wrote:

> Python doesn't provide reasonable ways to test for Inf or NaN.  These
> are needed in new eigenvalue routines (the only known optimal ones).
> Yes, I know, there are some non-IEEE architectures left, but they
> shouldn't be encouraged.  (Keep in mind that I'm at Berkeley; expect 
> a strong IEEE-754 bias.)

Well, now that the C standard (C99) says *something* about the
implementation of floating point numbers, we can expect some change in this.
However, given that it took 10 years before Guido decided for an all-out
move from K&R C to ANSI C, it's not likely to happen overnight ;)

Tim can probably say more about this, though, as usual.
-- 
Thomas Wouters <thomas at xs4all.net>

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