see
http://code.jsoftware.com/wiki/System/ReleaseNotes/J806
SHA1 was also implemented using pure J script.
On Dec 23, 2017 12:15 AM, "Danil Osipchuk" wrote:
> Actually presence of 128!:6 is (good) news - it certainly was not there,
> thank you Bill (difficult to tell apart memory and imaginati
timespacex 'safe s13'
3.16326 1.03136e7
Thanks,
--
Raul
On Fri, Dec 22, 2017 at 1:52 PM, 'Mike Day' via Programming
wrote:
> How long did pt 2 take for you? I found something else do do, while I let
> J loop on trial delays, but it was several minutes, I think
>
> Mike
>
> Please rep
How long did pt 2 take for you? I found something else do do, while I let J
loop on trial delays, but it was several minutes, I think
Mike
Please reply to mike_liz@tiscali.co.uk.
Sent from my iPad
> On 22 Dec 2017, at 18:37, Raul Miller wrote:
>
> For what it's worth, here's wh
For what it's worth, here's what I did for day 13. s0 is the sample data set.
s0=:|:".;._2]0 :0-.':'
0: 3
1: 2
4: 4
6: 4
)
ride=:*/ +/ .* 0 = (|~ _2 2&p.)/
safe=:3 :0
'when len'=: y
dur=. _2 2&p.len
lim=. *./dur NB. delays=: i.*./dur
bs=. >./ (* 1e5&>) */\q:lim
for_block. bs*i.lim%bs d
That problem took a lot of reading!
Like you, Brian, I started with the boustrophedon cycles:
example NB. my data has 2 rows: depth,: range:
0 1 4 6
3 2 4 4
(Brian forms the data into a simple vector of ranges
3 2 0 0 4 0 4 )
My verb, cycle, is used to assemble a look-up table of scan po
Linda,
(and thanks to others who helped before you, too)
Thanks very much for that reference and for the information about how to
access it from the Vocabulary page. That is awesome. I had a little trouble
at first finding "LJ" on the Vocabulary page, because I had not noticed it
before at the to
Actually presence of 128!:6 is (good) news - it certainly was not there,
thank you Bill (difficult to tell apart memory and imagination when getting
older ). MD5 while being not recommended, I'm sure will be missed. As a
side note: a somewhat neater version with ^: 'if idiom'
hmac =: 2 : 0 NB. m
It can be difficult for anyone to come back and read code a while
later. That's one of the reasons why we keep replacing old systems
(usually with something less efficient).
But this can also be seen as an opportunity to develop skills at
documentation: Wait long enough that it starts being diffic
Below, is a generalization conjunction hmac for what is available in
128!:6, tests are for sha1, to check correctness wtr of alg/padding,
m - is a key string
n - the same meaning as on 128!:6
bfh=:a.{~_2(16&#.)\'0123456789abcdef'i.] NB. bytes from hex string
'key' hmac 1 'asdf'
384d71757bad0ee7
I know, but I had to use md5 - I remember wondering why it is not there.
The same issue had the person writing jqt where I borrowed md5
2017-12-22 13:16 GMT+03:00 bill lam :
> j806 j engine supports various sha, both hex and byte output.
>
> On Dec 22, 2017 4:51 PM, "Danil Osipchuk"
> wrote:
j806 j engine supports various sha, both hex and byte output.
On Dec 22, 2017 4:51 PM, "Danil Osipchuk" wrote:
> Below is a snippet I used to sign files with md5hmac, may be of some use.
> (I envy people easily reading other's J, I have difficulties reading mine a
> while later )
> regards,
>
Below is a snippet I used to sign files with md5hmac, may be of some use.
(I envy people easily reading other's J, I have difficulties reading mine a
while later )
regards,
Danil
qthash =: 4 : 0NB. taken from qt ide, x is hash
algo name str, y is a data string, result is
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