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Jean-Paul Cipria

cipria[ at ] 25 Years Experiences in Sciences for Engineers TEACHING and SCIENCES Master’s Degrees Scientific Publications Download article as PDF

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Algorithmics 07 – From Shannon to Karatsuba or the Reverse ?

We can observe C. Shannon as a genius engineer and Karatsuba as a smart mathematician. But how did they think about physics and how Shannon explained theories ? Do discovers follow ideas or the invert ? You can follow in direct live my own postdoc research on subject « How to improve Signal Behaviour ? » Why ? « To improve accuracy […]

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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 – 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 ? Then 32 years later M. Karatsuba [KARATSUBA-1995] understand as a very high level what he said 32 years ago and it […]

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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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