Groups > microsoft.public.vb.general.discussion > #118476

Re: Which is better

From	ObiWan <obiwan@mvps.org.invalid>
Newsgroups	microsoft.public.vb.general.discussion
Subject	Re: Which is better
Date	2024-06-03 17:39 +0200
Organization	n/a
Message-ID	<v3ko35$15i2m$2@solani.org> (permalink)
References	(3 earlier) <v3jrrm$15632$2@solani.org> <v3kdb2$15aer$1@solani.org> <v3kemr$15ggd$1@solani.org> <v3kjnc$15jbp$1@solani.org> <v3kn9n$15i2m$1@solani.org>

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:: On Mon, 3 Jun 2024 17:25:43 +0200
:: (microsoft.public.vb.general.discussion)
:: <v3kn9n$15i2m$1@solani.org>
:: ObiWan <obiwan@mvps.org.invalid> wrote:

> As I wrote, the difference is that the SQR() function invokes the CPU
> native function(s) to perform the calculation, while using the "power"
> approach, VB is forced to "do the math" using its own math libraries

in short, the optimizer isn't "smart" enough to understand that (x)^0.5
may be converted to an sqr() call under the hood, so VB doea all the
math ...

It would be interesting, if you used the "^0.5" approach in some real
app code, to replace those with "sqr()" and check the resulting speed

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Which is better StanWeiss <srweiss1@comcast.net> - 2024-05-30 10:58 -0400
  Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-05-30 17:33 +0200
    Re: Which is better StanWeiss <srweiss1@comcast.net> - 2024-05-31 09:07 -0400
  Re: Which is better StanWeiss <srweiss1@comcast.net> - 2024-06-01 15:56 -0400
    Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-03 09:34 +0200
      Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-03 09:37 +0200
        Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-03 14:35 +0200
          Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-03 14:59 +0200
            Re: Which is better StanWeiss <srweiss1@comcast.net> - 2024-06-03 10:24 -0400
              Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-03 17:25 +0200
                Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-03 17:39 +0200
                Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-04 18:16 +0200
                Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-05 16:00 +0200
                Re: Which is better ObiWan <obiwan@mvps.org.invalid> - 2024-06-05 16:39 +0200

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