You can use adverse too
{&'#.'@(2:<|)@ (((+*:) :: _:)^:250~)"0(24%~i:_24)j.~/36%~_72+i.88

On 10/31/2014 1:18 PM, Devon McCormick wrote:
Yes - I don't see how either.  In any case, I fixed it by changing the
lovely, simple "(+*:)" to a "capped" version: 2&((2j2,~]){~[<[:|])@:(+*:)"0).
So, anyone who's interested in this should try

    {&'#.'@(2:<|)@((2&((2j2 ,~ ]) {~ [ < [: |
])@:(+*:)"0)^:30~)(24%~i:_24)j.~/36%~_72+i.88

or, even better, this

    load 'viewmat'
    viewmat ((2&((2j2 ,~ ]) {~ [ < [: |
])@:(+*:)"0)^:20~)(512%~i:_512)j.~/419%~_825+i.1024


On Fri, Oct 31, 2014 at 12:24 PM, Joe Bogner <[email protected]> wrote:

I may be stating the obvious, but it looks like the numbers are
doubling per iteration

{. 0 {"1 ((+*:)^:8~)(12%~i:_12)j.~/18%~_36+i.44
4.41152e66j_1.05844e67

{. 0 {"1 ((+*:)^:9~)(12%~i:_12)j.~/18%~_36+i.44
_9.25685e133j_9.33868e133

{. 0 {"1 ((+*:)^:10~)(12%~i:_12)j.~/18%~_36+i.44
_1.52155e266j1.72894e268

It overflows at 11

I don't see how it could have worked with the same inputs above 10 before

On Fri, Oct 31, 2014 at 11:54 AM, Aai <[email protected]> wrote:
Lowering the iteration to 11 gives me a result.

Devon McCormick schreef op 31-10-14 om 16:49:

I don't know when it worked or on what version - I just have a snippet
in
a
file.

On Fri, Oct 31, 2014 at 10:51 AM, Joe Bogner <[email protected]>
wrote:
Hi Devon - any idea what version / platform it worked on? I tried
j6.02 and j8.01 32bit along with j8.03 64 bit and all reported the
same



On Fri, Oct 31, 2014 at 10:26 AM, Devon McCormick <[email protected]>
wrote:
Hi -

I think that this expression

     {&'#.'@(2:<|)@((+*:)^:250~)(12%~i:_12)j.~/18%~_36+i.44

used to work but now fails with "NaN error" if the value of the power
iteration, shown as 250 here, is any greater than 10 or 11.

Is anyone familiar with this?  Any idea why it used to work but now
fails?
Any idea on how to get it to work with more than 10 iterations?

It's potentially a nice illustration of the power of J - or of the
power
of
"power".

--
Devon McCormick, CFA
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--
Met vriendelijke groet,
@@i = Arie Groeneveld


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