HaloO,
I asked:
just re-reading S03 I saw that it defines the Rat to Int
conversion as truncation.
Hmm, does assuming floor semantics reveal the availability of
the tail function for Nums?
(-1.25).tail == 0.75
Can it also be used as an lvalue?
my Rat $x = -5/4; # note that this is (-5)/
HaloO,
Darren Duncan wrote:
Or maybe your question is more about what method to use by default if
users don't explicitly choose one?
Yes. I thought we have gone over this in the div/mod discussion that
ended with specifying floor semantics for %. I sort of hoped for a
synopsis update with subj
On Fri, Mar 28, 2008 at 3:47 PM, <[EMAIL PROTECTED]> wrote:
> I think nearest makes more sense. People will be really surprised when
> /1 turns into 0.
They shouldn't be, if they're asking for an integer specifically.
That's what happens now in Perl 5...
If you have a rational
The choice of floor vs ceiling is essentially arbitrary, as long as
its consistent; using truncation or rounding is mathematically
unsound. Most implementations use floor, though.
So in general I would expect these to hold:
x div y = floor(x/y)
x mod y = x - y * floor(x/y)
Most importantly, thi
TSa wrote:
> just re-reading S03 I saw that it defines the Rat to Int
> conversion as truncation. Why not floor semantics like in %?
> Actually I would recommend floor semantics whenever an integer
> is coerced. With the sole exception of Num propably using
> rounding.
If the difference matters t
I think nearest makes more sense. People will be really surprised when
/1 turns into 0.
--
Mark Biggar
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
-- Original message --
From: TSa <[EMAIL PROTECTED]>
> HaloO,
>
> just re-reading S03 I
HaloO,
just re-reading S03 I saw that it defines the Rat to Int
conversion as truncation. Why not floor semantics like in %?
Actually I would recommend floor semantics whenever an integer
is coerced. With the sole exception of Num propably using
rounding.
Regards, TSa.
--
The Angel of Geometry
