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Numerical Recipes in C book set: Numerical recipes in C. The art of scientific computing (Englisch) Gebundene Ausgabe – 30. Oktober 1992

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'If you are a programmer you need it. If you have someone to write programs for you, buy it as a birthday present.' Spectroscopy Europe

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This is the revised and expanded second edition of the hugely popular Numerical Recipes: the Art of Scientific Computing. The product of a unique collaboration among four leading scientists in academic research and industry, Numerical Recipes is a complete text and reference book on scientific computing.

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Format: Gebundene Ausgabe
This is a very useful book for scientists and engineers, it collects codes for many most-often-encountered numerical problems, and the discussion is lucid, frank and helpful. However, the author adopted a very bad policy: they do not permit users to distribute their code. So suppose you write an application program which uses lots of integrations, linear algebra and differential equation routines, you would naturally like to use the numerical recipe routines for these basic tasks, but if you want to make your code freely available to others, you find you can't, because the numerical recipes routines are copyrighted and the authors forbid you to distribute even part of them with your code(except for a few public domain routines). They suggest you use the Netlib code which is freely available, however, since there is no systematic documentation, it is more difficult to use the netlib code. In any case, what is the point of having this book and its code if you have to use netlib code? this is really a trouble for the readers and users of this book. On the other hand, the authors provided their book online free of charge, but this is of little use--most readers would buy the book anyway, and prefer to have the code free.
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Format: Gebundene Ausgabe
This is an excellent text, filled with code segments, a few equations, and lots of glorious plain english *words* in which the authors share their practical experience on how to go about getting useful work done. If you've ever wanted to really understand numerical methods, or just want to make an intelligent choice between alternative approaches to a problem, this book is a gold mine.
The code itself, however, is a bit quaint. It does compile, and mostly work, but it's not the sort of thing you'd want to gamble a medical instrument or space flight on. (The code has the look and feel of 30 year old fortran which was rudely translated to C by some hapless grad student.)
Take the time to understand the routines that really matter for your application and reimplement them, with better error checking and/or optimizations to suit your needs. (Very likely the first thing you'll do is a global search to replace the string "float" with "double". That alone will bring the code out of the 70's and up to somehwere in the middle 80's)
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Format: Gebundene Ausgabe
The code you purchase separately IS definitely in ASCII format. For the Windows version, the authors have provided a "browser" (yes, some kind of .dll file) that allows you to look at individual routines before saving them to your disk. This method is much easier than just dumping 400-500 routines (including example driver programs) to your hard disk. As the authors point out in the help file, there are numerous routines where they WANT you to change things (e.g., platform-dependent definitions of machine epsilon), or at least inspect, for your application. The idea that the code would not be provided in a format that can be edited is completely at odds with what the authors talk about in the Preface (1st ed.), as well as other places in the book. You're SUPPOSED to tear it apart and put it back together. If the above-referenced reviewer's diskettes really do not have the ability to extract ASCII files, like mine, then they are surely defective.
Second, the code IS ANSI-C compliant, which is stated quite clearly in the book. The fact that it is different for different platforms probably (I'm guessing) has to do with the unwrapping program used to navigate through the source files. The Windows browsing file mentioned above is really just a clever application of the standard Windows ".hlp" file format. Obviously, you can't use that on Mac or UNIX. I saw yet another way to do it on DOS platforms with the first edition diskettes. There is no reason to suspect that the actual code is not IDENTICAL on all platforms, except, of course, that each platform defines a newline differently. That said, it is a clear violation of the user license to be porting the code between platforms.
Now, if anyone cares about my opinion of the book...
Lesen Sie weiter... ›
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Format: Gebundene Ausgabe
Schon das erste Numerical Recipes war ein hervorragendes Buch. Die Autoren verstehen es auch in dieser Ausgabe, das doch recht trockene mathematische Material in kurzer, verständlicher Form dem Leser näherzubringen. Allerdings beschränkt sich das sowohl in der alten, als auch in der neuen Version nur auf die mathematischen Inhalte, die Quellcodes bleiben deutlich auf der Strecke. Man sollte meinen, dass die Autoren in der Lage seien, vernünftigen Code zu schreiben. Dem ist leider nicht so, was eigentlich schade ist, da ein vernünftiger Programmcode das Buch abgerundet hätte. Trotzdem ein sehr empfehlenswertes Buch, das sein Geld mehr als wert ist.
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Format: Diskette
There is no question that the book is a valuable resource. It draws on classic references such as Bevington's 'Data Reduction and Error Analysis...' or other good books such as Acton's 'Numerical Methods that Work.' Very nice when you need a quick understanding on how to approach/attack a problem.
I find myself disappointed with the software on the disk you purchase separately. What I was expecting/hoping was ASCII files with the source code so that I wouldn't have to type it in myself from the book; however, it is in Windows DLL format. This is not very useful if you'd like to use the code on different platforms. One puzzling thing is that the Windows disk is about $35, while they offer an on-line download Unix version for $50 ($150 for the multi-user license). I don't understand why there would be differences between the two unless the NR software is not ANSI-C compliant. If this is the case, then I'd consider the software useless.
Recommendation: Buy the book as a reference. Use different software.
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