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Re: Performance optimization (allocation inside a for loop)


From: James Sherman Jr.
Subject: Re: Performance optimization (allocation inside a for loop)
Date: Thu, 2 Apr 2009 12:06:11 -0400

Its redundant as far as I know, but I always use it because I think it looks more readable.

James

On Thu, Apr 2, 2009 at 11:58 AM, Elias Assmann <address@hidden> wrote:
Rob Mahurin wrote:
> octave:29> tic; n = 1e5; retval = 1:n; toc
> Elapsed time is 0.000756025 seconds.
> octave:30> tic; n = 1e5; retval = (1:n)(1:n); toc
> Elapsed time is 0.00757694 seconds.
> octave:31> tic; n = 1e5; retval = [1:n]; toc
> Elapsed time is 0.0125589 seconds.

Can someone explain the difference between "1:n" and "[1:n]"?  I would
normally write the brackets because I find that way clearer; does this
mean "1:n" is actually the "preferred" way?

       Elias

--
Wenn weniger mehr ist, ist nichts alles.

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