Henry;
How does power have an origin?
(PTB... is this getting CHATty? It does seem to be a real pain to alter the
To: on Outlook Express...)
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|\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
|/\| [EMAIL PROTECTED] |
|\ | |If you cannot describe what you are doing
BSc(Math) UNBF'83 |as a process, you don't know what you're doing.
Sapere Aude | - W. E. Deming
Natural Born APL'er | Demo website: http://156.34.76.145/
-----------------------------------------------------(INTP)----{ gnat }-
----- Original Message -----
From: "Henry Rich" <[EMAIL PROTECTED]>
To: "'Programming forum'" <[email protected]>
Sent: Monday, August 07, 2006 11:36 PM
Subject: RE: [Jprogramming] conventional way of matrix power?
You're right of course. Maybe I was thinking in 0-origin...
Henry Rich
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Randy
MacDonald
Sent: Monday, August 07, 2006 10:30 PM
To: Programming forum
Subject: Re: [Jprogramming] conventional way of matrix power?
Henry;
Looks like A^10 ...
+/ . *^:1~ A
7 10
15 22
which is A^2
--------------------------------------------------------------
----------
|\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
|/\| [EMAIL PROTECTED] |
|\ | |If you cannot describe what you are doing
BSc(Math) UNBF'83 þas a process, you don't know what
you're doing.
Sapere Aude | - W. E. Deming
Natural Born APL'er | Demo website: http://156.34.76.145/
-----------------------------------------------------(INTP)---
-{ gnat }-
----- Original Message -----
From: "Henry Rich" <[EMAIL PROTECTED]>
To: "'Programming forum'" <[email protected]>
Sent: Monday, August 07, 2006 11:20 PM
Subject: RE: [Jprogramming] conventional way of matrix power?
> A^9, actually:
>
> +/ . *^:9~ A
> 4783807 6972050
> 10458075 15241882
>
> You can save some matrix multiplies if you analyze the power.
>
> Henry Rich
>
>
>> -----Original Message-----
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf Of June Kim
>> Sent: Monday, August 07, 2006 10:01 PM
>> To: Programming forum
>> Subject: [Jprogramming] conventional way of matrix power?
>>
>> A=: >1 2;3 4
>> (+/ . *)/ 10 2$A NB. A^10
>> 4783807 6972050
>> 10458075 15241882
>>
>> Is this conventional in J? (I guess not)
>>
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>>
>
>
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> For information about J forums see
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For information about J forums see
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