[Jprogramming] Kronecker Product

[Roger Hui]

Or  
   <;.1^:_1 a *&.> <b
   <;.1^:_1 <"2 a*/b

where <;.1^:_1 is an extension discussed in
http://www.jsoftware.com/jwiki/Essays/Block%20Matrix%20Inverse



----- Original Message -----
From: Roger Hui <rhui000 at shaw.ca>
Date: Thursday, February 25, 2010 15:34
Subject: Re: [Jprogramming] Kronecker Product
To: Programming forum <programming at jsoftware.com>

> Also:
> 
> > ,.&.>/ ,&.>/ a *&.> <b
> 
> 
> 
> ----- Original Message -----
> From: Roger Hui <rhui000 at shaw.ca>
> Date: Thursday, February 25, 2010 15:30
> Subject: Re: [Jprogramming] Kronecker Product
> To: Programming forum <programming at jsoftware.com>
> 
> > (a *&$ b) ($,) 0 2 1 3 |: a */ b
> > 
> > 
> > 
> > ----- Original Message -----
> > From: "Leigh J. Halliwell" <leigh at lhalliwell.com>
> > Date: Thursday, February 25, 2010 15:01
> > Subject: [Jprogramming] Kronecker Product
> > To: 'Programming forum' <programming at jsoftware.com>
> > 
> > > Dear J Forum:
> > >  
> > > What in J is an efficient code for the Kronecker product of 
> > two 
> > > matrices?Thank you.