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One approach to cross ratio interprets it as a homography that takes three designated points to 0, 1, and ∞. Under restrictions having to do with inverses, it is possible to generate such a mapping with ring operations in the projective line over a ring. The cross ratio of four points is the evaluation of this homography at the fourth point.
[12] [13] [clarification needed] After calculating the cross-correlation between the two signals, the maximum (or minimum if the signals are negatively correlated) of the cross-correlation function indicates the point in time where the signals are best aligned; i.e., the time delay between the two signals is determined by the argument of the ...
It kept the name Collins Gem Encyclopedia in the United Kingdom, but was a very different item than its predecessor. The new volume was topically arranged, had 638 pages, 300 articles and 100,000 words. There were no cross references, but there was an index with 750 entries. Its physical dimensions were 4.25 by 5.25 inches.
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John Collins VC, DCM (10 September 1880 – 3 September 1951) was a recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces. Born in West Hatch, Somerset, his family moved to Merthyr Tydfil, South Wales, when he was 10 years old. [1]
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The unabridged Collins English Dictionary was published on the web on 31 December 2011 on CollinsDictionary.com, along with the unabridged dictionaries of French, German, Spanish and Italian. [5] The site also includes example sentences showing word usage from the Collins Bank of English Corpus, word frequencies and trends from the Google ...
Trigonometric functions and their reciprocals on the unit circle. All of the right-angled triangles are similar, i.e. the ratios between their corresponding sides are the same.