We could get a few more bits if we needed them. But supporting a new
datatype like this would take many months of work, for minimal value.
Henry Rich
On 9/9/2017 9:10 PM, bill lam wrote:
Each j datatype is assigned a number of value 2^n and it is already almost
used up (only 32-bit range is used to stay compatible with J32). The latest
addition is literal4 in j805. IMO extended complex or extended complex
rational are unlikely to be a candidate to use the nearly used up resource.
On Sep 10, 2017 8:02 AM, "Louis de Forcrand" <[email protected]> wrote:
I don't know; I hardly ever use extended precision or rationals myself
either. I guess it would make the language more "complete".
Definitely not a priority.
Louis
On 9 Sep 2017, at 11:34, Raul Miller <[email protected]> wrote:
What would it be used for? (Related: how would the exponential aspects
of complex number operations get handled?)
Thanks,
--
Raul
On Sat, Sep 9, 2017 at 4:57 AM, Louis de Forcrand <[email protected]>
wrote:
There is no extended complex datatype in J (although its addition could
be a thought).
Louis
On 9 Sep 2017, at 09:23, 'Bo Jacoby' via Programming <
[email protected]> wrote:
%2 NB. floating
0.5
x: %2 NB. extended
1r2
%1j1 NB. floating
0.5j_0.5
x: %1j1 NB. why not extended?
|domain error
| x:%1j1
Den 3:53 lørdag den 9. september 2017 skrev Don Kelly <[email protected]>:
It appears that the verb ^ may be a large part of the problem (as in
14^2). Check NuVoc /vocabulary/Numeric Precision and go the table for
different verbs . This and the division may be floating point in this
case
_____________________________
^ ^. -: % %. inexact (complex if needed),
preserves extended and rational
if result is exact
_________________________
Don Kelly
On 2017-09-08 1:36 AM, Raul Miller wrote:
No: integers do not automatically get converted to extended precision.
Integers simply have sufficient precision for this example.
Thanks,
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