From: Ray Andrews <email@example.com>
Subject: Re: run time of math problem
Date: Fri, 19 Mar 2021 19:40:19 -0700 [thread overview]
Message-ID: <firstname.lastname@example.org> (raw)
On 2021-03-19 4:52 p.m., Oliver Kiddle wrote:
> If you want to optimise for speed, avoid string conversions and do, e.g.
> (( divided = sum * (1.0 / level) ))
Thanks, that's easy to miss but it makes sense. One of those invisible
Doing it that way throughout is fully 3X faster. Running it up to a
billion itterrations it
starts to matter.
As to the rest I was just stupidly forgetting that I'm in a loop. I'm
faking a summation.
We don't have summation do we?
> You also may want to make sure to declare some of the variables as float
> or integer or whatever. The sum+= line might end up being a string
> concatenation if not.
Yeah, I left out the declarations but it was all kosher.
next prev parent reply other threads:[~2021-03-20 2:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 23:18 Ray Andrews
2021-03-19 23:46 ` Lawrence Velázquez
2021-03-19 23:51 ` Ray Andrews
2021-03-19 23:52 ` Oliver Kiddle
2021-03-20 2:40 ` Ray Andrews [this message]
2021-03-20 3:59 ` Lawrence Velázquez
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