Re: new norms (Re: Octave.app 2.9.15)

[David Bateman]

Vic Norton wrote:
> On Oct 14, 2007, at 3:24 PM, Thomas Treichl wrote:
>
>   
>> I just uploaded the compressed disc images *dmg including  
>> Octave.app 2.9.15 for MacOSX to the Sourceforge's server.
>>     
>
> I've just installed Octave.app 2.9.15, and I see that the vector norm  
> functions, norm(x) and norm(x, 1), are now considerably faster than  
> their equivalent expressions,
>     sqrt(sum( x .* x )) and sum(abs( x )).
>
> This is a big change from octave-2.9.14! Thanks to whomever is  
> responsible!
>
> Next problem: make norm(x, 1) faster than max(sum(abs(x))) for  
> matrices x.
>
> Regards,
>
> Vic
>   
You are responsible, for hitting us over the head till we got it right.. :-)

D.

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