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update Last update: 2016-10-13 01:00:27
Editor: Vincent ISOZ  | Version: 3.0 Release17

Number of visitors (cumulated uniques v. /day) since 2003-05-01 on Sciences.ch: 4'254'833
Number of cumulated views since 2003-05-01 on Sciences.ch: 45'924'275

The purpose of this website and it's associated PDF (here) is to present to people who approach the study of applied mathematics, its basic concepts and to do so with some level of rigor (demonstrations are complete or at least pushed to the point where there can reasonably be judged to be), details and consistency in respect of writing conventions and with a maximum of pedagogy. This site is also born from the desire to present some scientific ideas and understand how they modestly affect our lifestyle, our way of thinking, working and their impact on our ecosystem and the unreasonable effectiveness of applied mathematics. Indeed, issues related to science are becoming increasingly important in our contemporary culture and represent a major challenge in terms of ethics, citizenship and development.

This site is not intended to be a novel to read from start to the end. It is intended as a reference book (after all errors have been corrected and texts completed ...) which, when simple questions arise, to find answers quickly using computer technology and for free. This site can not (and does not) also claim to replace a formal school education with a teacher and numerous practical exercises. It can however be seen as a formulas reference (with proofs) or a relatively good theoretical complement to the preparation of various examinations.

The view point that is adopted is that of the pragmatic engineer, eager to study mathematics, classical physics, econometrics, numerical analysis, statistics, relativistic mechanics, quantum physics, social mathematics, computer science, chemistry, etc.. in a concise way and without wasting time in a formal and extravagant vocabulary and unusable in modern industry. From this point of view the concepts and methods presented are just some of the typical tools mathematical-physical (absolute minimum in the field). The specialist expert will find nothing new and the student who would be interested in a particular theory should know that every subject is unfortunately much larger than anything that can be discussed here so far ... The ambition is not one we can have for students of a course of mathematics for whom the acquisition of tools is important. This makes possible a little formal style where one wishes to give evidence less complete than to intuitively understand the objects presented, to see them and own them.

We dedicate this website to all those for which each answer is a question.

Vincent ISOZ ( Sciences.ch administrator)


Physics is like sex. Sure it may have some practical results, but that's not why we do it R. Feynman

Survey SURVEY (log)

Professional in industry or administration (under contract) and older than 25 years? If so, we would like to know how often you use mathematical tools to a level above the graduate level regularly in your work? (17.05.2009).


(182 votes this day on this subject)


- We know that the site contains hundreds of misspellings and grammatical errors. English is not our mothertongue then if you want to help us for the corrections don't hesitate to contact us. We thank you for your understanding.

- As you probably already have noticed, none of the sections of the site are really complete. Indeed, we write according to our moods and it may well be that certain subjects are neglected for several months or even years to be resumed or translated later.

Change logNEW TRANSLATIONS (change log)

- 2012.04.12: Home and Vistor statistics pages translated
- 2012.04.18: Announcements, Contact and Partners pages translated
- 2012.04.19: About page translated
- 2012.04.20: Impressum page translated
- 2012.04.21: Wikimedia and Guestbook pages translated
- 2012.04.22: Overflow, Maintenance, Error 400, Error 500 pages translated
- 2012.04.25: Forum translated
- 2012.04.26: Free GNU Documentation license page translated
- 2012.04.27: Sponsors page translated
- 2012.04.28: Main search page and Algebra table of contents pages translated
- 2012.04.29: Analysis, Theoretical computing, Arithmetic table of contents pages translated
- 2012.04.30: Chemistry, Cosmology, Electrodynamics table of contents pages translated
- 2012.05.01: Geometry, Engineering and Social maths table of contents pages translated
- 2012.05.02: Mechanics and Atomistic table of contents pages translated
- 2012.06.28: Humour page translated
- 2012.07.12: Links page translated
- 2012.07.16: References page translated
- 2013.01.06: Biographies page translated
- 2013.02.28: Introduction page translated
- 2013.03.16: Chronoly page translated
- 2013.05.30: Probabilites chapter page translated


- Detailed and pedagical proofs of Apsin-Welch, Durbin-Watson, Hosmer-Lemeshow, Wald–Wolfowitz, Hawe interval tolerance and related Hahn et Meeker confidence interval

- Detailed proofs of Fresnel diffraction (Airy disk) and the gyroscopic nutation

- Devotees of mathematical-physical to write exercises sets (with solutions) on the topics addresses on the site (for the server exercises)

If you have something that we seek or you are interested in participating in the development of the site or for translations, please contact us. We will send you the site working charter.

On workON WORK

Translation of Introduction page, Chronology page, Probabilities chapter, Statistics chapter, Industrial Engineering chapter, Econometrics chapter, Quantitative Project Management chapter, Sample Size for Reliability Test plans, ...


To properly view and print the equations and text on the website you need to disable Microsoft's ClearType technology. To do this in MS Windows go to Display Properties and in the Appearance tab go into Effects and uncheck Use the following method for....

Then in MS Internet Explorer go to the Advanced options tab and in the Multimedia part and disable ClearType.

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