On Thu, Jan 09, 2020 at 07:53:17PM +0000, Mr. Brian B. McGuinness wrote:
> For example, if I do
>
> )wsid test
> WAS CLEAR WS
> sec2rad ← 4.8481368110953599359e¯6
> )dump
>
> and then I look at the test.apl file, I see
>
> sec2rad←0.00000484813681109536
>
> so I have lost five digits.
No, you have lost only 3 when converting the number you initially entered
to double precision floating point representation, long before dumping.
The dumped value has enough digits to recover it *exactly*:
⎕CT←0
0.00000484813681109536 = 4.8481368110953599359e¯6
1
25⍕⍪ 0.00000484813681109536 4.8481368110953599359e¯6
.0000048481368110953599881
.0000048481368110953599881
(But otherwise I'm indifferent to the proposal of changing )DUMP format.)
-k
