Comments on: Crest factor, Square roots & neat algorithms http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/ Thoughts on embedded systems by Nigel Jones Sun, 06 May 2012 10:34:02 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Ian Johns http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-2186 Ian Johns Wed, 29 Sep 2010 18:25:37 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-2186 Now that we've got that handled, I originally looked at this post because I was forwarded the following square root PDF : http://www.worldserver.com/turk/computergraphics/FixedSqrt.pdf . Although I am good at math, what that really means is that I'm now old enough & smart enough (& lazy enough) to realize I can't readily compare these two algorithms. They perform somewhat similar operations but that does not guarantee that they are similar in concept. Anyone care to compare/contrast these two approaches? Now that we’ve got that handled, I originally looked at this post because I was forwarded the following square root PDF : http://www.worldserver.com/turk/computergraphics/FixedSqrt.pdf .

Although I am good at math, what that really means is that I’m now old enough & smart enough (& lazy enough) to realize I can’t readily compare these two algorithms. They perform somewhat similar operations but that does not guarantee that they are similar in concept.

Anyone care to compare/contrast these two approaches?

]]> By: Ian Johns http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-2185 Ian Johns Wed, 29 Sep 2010 18:10:29 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-2185 Ah OK, I see the modification in the post (which now makes more sense) AND I now see how Wordpress removes all text between a 'less-than' & 'greater-than' sign. What kind of blog control is that?! Ah OK, I see the modification in the post (which now makes more sense) AND I now see how WordPress removes all text between a ‘less-than’ & ‘greater-than’ sign. What kind of blog control is that?!

]]> By: Nigel Jones http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-2184 Nigel Jones Wed, 29 Sep 2010 17:44:34 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-2184 Ian: You weren't going mad. This post was originally written using Google's blogger. A few months ago we switched to Wordpress. However the automated blog converter clearly has a few holes in it as it completely mangled the offending line. Anyway I have updated the post so that hopefully it makes a bit more sense now. Ian:
You weren’t going mad. This post was originally written using Google’s blogger. A few months ago we switched to WordPress. However the automated blog converter clearly has a few holes in it as it completely mangled the offending line. Anyway I have updated the post so that hopefully it makes a bit more sense now.

]]> By: Ian Johns http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-2183 Ian Johns Wed, 29 Sep 2010 17:28:50 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-2183 OK. I hate post modification. I hope you can figure which operator by context. Stupid post editors. OK. I hate post modification. I hope you can figure which operator by context.

Stupid post editors.

]]> By: Ian Johns http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-2182 Ian Johns Wed, 29 Sep 2010 17:28:05 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-2182 Sigh. The post killed the operator in question. It was the ''. In Basic, that's equivalent to !=; but what is that operator in C? Sigh. The post killed the operator in question. It was the ”. In Basic, that’s equivalent to !=; but what is that operator in C?

]]> By: Ian Johns http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-2181 Ian Johns Wed, 29 Sep 2010 17:26:51 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-2181 What is the operator? : rem = ((rem 14)); What is the operator? :

rem = ((rem 14));

]]> By: Anonymous http://embeddedgurus.com/stack-overflow/2007/04/crest-factor-square-roots-neat-algorithms/comment-page-1/#comment-8 Anonymous Wed, 25 Apr 2007 18:59:00 +0000 http://www.gfcdev.org/test-stack/2007/04/21/crest-factor-square-roots-neat-algorithms/#comment-8 Nigel,I stumbled across your blog recently and would like to compliment you on your "embedded" outlook. Your posts are always focussed and refreshing.Please keep them coming.-R. Nigel,I stumbled across your blog recently and would like to compliment you on your “embedded” outlook. Your posts are always focussed and refreshing.Please keep them coming.-R.

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