Henry;
Looks like A^10 ...
+/ . *^:1~ A
7 10
15 22
which is A^2
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|\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
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BSc(Math) UNBF'83 þas a process, you don't know what you're doing.
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----- 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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