On Mon, 16 Dec 2019 18:28:35 -0800 Bakul Shah wrote:
> On Tue, 17 Dec 2019 09:46:52 +1100 Rob Pike wrote:
> > % ivy
> > 652342**52342
> > 1.85475753442e+304341
> >
> > )cpu
> > 8.291ms
> >
> > (652342**52342)/34232342
> > 9.27378767209e+304340/17116171
> >
> > )cpu
> > 9.217ms
> >
> > float _
>
On Tue, 17 Dec 2019 09:46:52 +1100 Rob Pike wrote:
> % ivy
> 652342**52342
> 1.85475753442e+304341
>
> )cpu
> 8.291ms
>
> (652342**52342)/34232342
> 9.27378767209e+304340/17116171
>
> )cpu
> 9.217ms
>
> float _
> 5.41814385477e+304333
On plan9/pi4 I get
% ivy
(652342**52342)/34232342
In case it's not clear, those calculations are integral, only the
presentation looks like floats.
-rob
On Tue, Dec 17, 2019 at 9:46 AM Rob Pike wrote:
> % ivy
> 652342**52342
> 1.85475753442e+304341
>
> )cpu
> 8.291ms
>
> (652342**52342)/34232342
> 9.27378767209e+304340/17116171
>
> )cpu
>
% ivy
652342**52342
1.85475753442e+304341
)cpu
8.291ms
(652342**52342)/34232342
9.27378767209e+304340/17116171
)cpu
9.217ms
float _
5.41814385477e+304333
50 minutes feels excessive; dc seems to work very hard.
-rob
--
9fans: 9fans
Permalink:
While running some silly benchmarks I discovered dc's '^' operator
limits exponents to ''. This seems arbitrary, perhaps a leftover
safety measure to keep things from eating all the CPU for days on
end on a slow machine? I upped the limit to 9 and the test
expression ran fine on a Pi4:
