Engineer's Book


Archive for the 'Algorithmique' Category

Algorithmic 06 – The Billion, the Billion* ! Primes !

Here after two days calculations by a simple computer with no bugs we do 1 billion searches by number of prime numbers in parts of density number then we do   divisions. It is a … great number. (*) : The billion, the billion : Title of a caricatural joke by « Les inconnus » to describe the […]

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Algorithmics 05-1 – Prime Numbers

Why don’t we read [KARATSUBA-1963] references ? Has a habit there are two theorems : . Theorem 1 called as Ofman. . Theorem 2 called as Karatsuba. . Lemme … … without a correct demonstration ? Russian Mathematician M. Karatsuba and Ofman wrote a paper in 1963 with two theorems and a lemme [1] . […]

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Algorithmics 04 – Prime Numbers – Erathostene Algorithm

How do Calculate the first Prime Numbers when we use Erathostene Methods ? Why use Prime Numbers when you are Physicist or an Engineer ? Then let’s try to do a multiplication ? How you do it pratically ? You use « Classic Method » when you write first operand then you multiply with second operand less […]

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Robotics – Industrials 4

Here a small film on how to Program a Trajectory on a Defined Plan … then we 3D Change Referential Position and we perform the same Program. Whats Up, Doc ? Link to MP4 Video. Is’nt it Fun to be an Engineer and think in relative 3D space without beeing Einstein ? Do Financials think […]

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Algorithmics 03 – Signal by Fourier Transforms- FFT – 3

  How do a Fast Fourier Transform by Cooley and Tukey Algorithms ? Why High Potential with a high level QI don’t understand official physics memorization ? The answer is in the question : nobody ask you to … understand ! Then let’s read the original engineers experts ! Come Back to … 1964. It […]

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