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Re: MacOSX: Octave.app 2.9.14
From: |
John W. Eaton |
Subject: |
Re: MacOSX: Octave.app 2.9.14 |
Date: |
Wed, 03 Oct 2007 15:11:57 -0400 |
On 30-Sep-2007, Dmitri A. Sergatskov wrote:
| Another speedup can be done if we make a norm (x,1) a special case,
| so instead of calculating:
|
| octave:29> tic; sum((abs(x) .^1))^1 ; toc
| Elapsed time is 0.174812 seconds.
|
| We can simply calculate:
|
| octave:30> tic; sum((abs(x))) ; toc
| Elapsed time is 0.080658 seconds.
Patches, anyone?
jwe
- Re: MacOSX: Octave.app 2.9.14,
John W. Eaton <=
- Re: MacOSX: Octave.app 2.9.14, Quentin Spencer, 2007/10/03
- Re: MacOSX: Octave.app 2.9.14, John W. Eaton, 2007/10/03
- Re: MacOSX: Octave.app 2.9.14, Quentin Spencer, 2007/10/03
- Re: MacOSX: Octave.app 2.9.14, John W. Eaton, 2007/10/03
- Re: MacOSX: Octave.app 2.9.14, Dmitri A. Sergatskov, 2007/10/03
- Re: MacOSX: Octave.app 2.9.14, Vic Norton, 2007/10/03
- Re: MacOSX: Octave.app 2.9.14, John W. Eaton, 2007/10/03
Re: MacOSX: Octave.app 2.9.14, David Bateman, 2007/10/03