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August 2020 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Top Posts & Pages
- The calculation of the Madelung constant
- Il calcolo della entalpia reticolare: il ciclo di Born-Haber
- Berechnung der Konstante von Madelung
- Physical Chemistry: The Simple Hückel Method
- Modeling Natural Pattens and Forms I: Sunflowers Florets and the Golden Ratio
- The Lissajous-Bowditch Curves
- The Calculation of the Lattice Energy: The Born-Haber Cycle
- The First 150 Years of the Periodic Table of the Elements
- Modelling Natural Shapes: (Easter) Eggs 2020
Category Archives: Programming
Questo blog contiene una breve introduzione alla programmazione della Unix shell csh/tcsh. Per altri tipi di shells, il lettore può consultare manuali dedicati a questo argomento riportati nella bibliografia alla fine di questa questo blog.
Lex. I. Corpus omne perseverare in statu suo quiescendi vel movendi uniformiter in directum, nili quatenus a viribus impressis cogitur statum illum mutare. Lex. II. Muationem motus proportionalem esse vi motrici impressae, et fieri fecundum lineam rectam qua vis illa imprimitur. Lex. III. Actioni … Continue reading
The recent technical developments in parallel computing have made available large parallel computing facilities at relatively contained costs that have stimulated an intense developing activity to realize efficient parallel programs for the scientific and technical calculation. One of the scientific … Continue reading
Write in C (Let it Be) When I find my code in tons of trouble, Friends and colleagues come to me, Speaking words of wisdom: “Write in C.” As the deadline fast approaches, And bugs are all that I can … Continue reading
Italy 1989, it was the age of Commodore Amiga with its BOING demo, the bouncing ball that conquest the heart of the millions of young people living the microcomputer revolution.
This article is the second part of my previous introduction to the PERL language. Here, I am going to show the use of the Perl language in simple bioinformatics applications. I will introduce by examples other aspects of this powerful language.
PERL is an acronym for Practical Extraction and Report Language. This scripting language was initially developed by Larry Wall with the intent to extend the potentiality of the awk and sed program for text manipulation and for Unix system administration … Continue reading
Awk is a powerful Unix tool. Its name derives from the surname initials of Alfred Aho, Peter Weinberger, and Brian Kernighan who originally designed it at Bell Labs in 1977. The program has a different version and implementations. A commonly … Continue reading
Shell commands can be combined in scripts files that perform complex actions. In the following, a very short introduction to the csh (and tcsh) shell programming is given. For other types of shell, the reader can consult comprehensive textbooks dedicated … Continue reading