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GNU Octave Beginner's Guide (Englisch) Taschenbuch – 21. Juni 2011

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  • Taschenbuch: 280 Seiten
  • Verlag: Packt Publishing (21. Juni 2011)
  • Sprache: Englisch
  • ISBN-10: 1849513325
  • ISBN-13: 978-1849513326
  • Größe und/oder Gewicht: 19 x 1,6 x 23,5 cm
  • Durchschnittliche Kundenbewertung: 5.0 von 5 Sternen  Alle Rezensionen anzeigen (1 Kundenrezension)
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2 von 2 Kunden fanden die folgende Rezension hilfreich Von joe am 2. Juni 2012
Format: Taschenbuch Verifizierter Kauf
Das Buch ist eine gut lesbare Einfuehrung wie mathematische Fragestellungen
mit GNU Octave numerisch loesbar und grafisch darstellbar sind.
Im ersten Kapitel wird GNU Octave auf einem Windows oder Linux
System installiert. In allen folgenden Kapiteln werden numerische
Aufgaben an einfachen Beispielen mit der GNU Octave/Matlab Syntax
durchgerechnet. "Einfach" bedeuted hierbei dass man immer auf dem
Verstehen der Handhabung von GNU Octave fokussiert bleiben kann
und sich nicht in der mathematischen Fragestellung selbst verliert.
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Die hilfreichsten Kundenrezensionen auf (beta) 11 Rezensionen
22 von 23 Kunden fanden die folgende Rezension hilfreich
Great book for someone learning Octave 27. Juli 2011
Von R. G. Rasmussen - Veröffentlicht auf
Format: Taschenbuch
GNU Octave Beginner's Guide by Jesper Schmidt Hansen is a good, readable introduction to Octave. It will shorten your learning curve, and get you up and running quickly.

Octave is an open source alternative to MATLAB. So, why use Octave instead of MATLAB?

MATLAB is an extremely powerful, yet easy to use software package for scientific, engineering, and mathematical computations. MATLAB is also very expensive. An individual commercial license costs $2100. To use MATLAB, as an individual, you must purchase a commercial license, unless you are a student enrolled in an academic institution, or you work for an academic institution, even if your use is personal and not commercial. Not sure about you, but $2100 puts MATLAB a bit outside my price range.

If you already have access to MATLAB, great! Use it.

If not, Octave is a good alternative as it provides much of the functionality of MATLAB, with none of the cost.

Like Python, Octave is a high level, interpreted programming language. Unlike Python, it is focused on numerical computation. With its interactive shell, you can use Octave like an advanced calculator, to get immediate results, and to test code fragments. But you can also develop advanced programs using Octave.

So, what does Hansen's "GNU Octave Beginner's Guide" have to offer? Quite a lot if you are just starting out using Octave.

Chapter 1 walks you through installing Octave for Windows and Linux, setting and storing defaults, adding packages, etc. Everyone should read the instructions for both operating systems, as some useful information appears only one place.

Chapter 2 teaches you to use scalars, vectors, matrices, strings, arrays and solve linear equations.

Chapter 3 tells you how to use Octave's built-in functions, and how to make 2-d and 3-d plots.

Chapter 4 covers programing essentials, including using if, switch, for, do, and while statements; controlling exceptions; input and output; and saving and restoring scripts.

Chapter 5 teaches you to write and use your own functions, and introduces you to debugging and vectorization.

Chapter 6 introduces you to sparse matrices, and walks you through all the steps needed to build an Octave package that solves 1-d and 2-d Poisson partial differential equations.

Chapter 7 deals with data files and data analysis, descriptive statistics, fitting functions to data, and use of Fast Fourier Transforms in data analysis and smoothing.

Chapter 8, the final chapter, tells you how to make Octave programs run faster and how to call routines written in C++.

All considered, this book covers a lot of territory, and does it very well. The only negative is that some typos are scattered throughout the book. But they are minor, and I didn't find any that would cause problems.
11 von 11 Kunden fanden die folgende Rezension hilfreich
A methodical approach to learning Octave 11. Juli 2011
Von Daryl Lee - Veröffentlicht auf
Format: Taschenbuch
My first pass at Octave was a few weeks ago, when I took a scattershot approach to learn just enough Octave to get some quick work done on a data analysis project. As soon as I heard about this book, I bought it and read it start to finish, with frequent expressions of "Oh, I wish I'd known that!" or "That would be a much cleaner way to do it."

Hansen takes the user through the learning process in a step-by-step way, each step building on the one before it with just the right amount of new material to draw the reader along without feeling overwhelmed. Yes, you should know some math, but that's a prerequisite for using Octave in the first place. The examples are interesting enough to show the reader how to get real work done without a huge amount of effort. Hansen also highlights ways to make Octave scripts highly compatible with Matlab. Had I known these tips on my first project, my Matlab-user colleague would not have had to edit what I gave him to run my programs on his system.

The biggest suggestion for improvement, which I have already passed along to Hansen, is to add some tips on reading data files not specifically created by or for Octave.

This is definitely a good read for a new Octave user.
5 von 5 Kunden fanden die folgende Rezension hilfreich
Gentle way to get to know the programming language Octave 4. April 2012
Von Mark A. Lytle - Veröffentlicht auf
Format: Taschenbuch Verifizierter Kauf
This is a good guide for someone with previous programming experience (at least some) or undergraduates with a math background who want to learn to use computers as a powerful math tool.

The structure is well thought out, and the explanations are generally clear. The examples are well chosen also. I find myself hoping that Mr. Hanson might come out with a sequel, as Octave is rich enough to be worth more than one book.

Octave is the free, open source alternative to Matlab, and will run many of the same scripts. With this entry, Octave shows it has matured, and has some momentum. I have spent about 2 weeks with this book and have only covered perhaps half of it's topics, but it is far more accessible then most college textbooks. I do recommend it for your bookshelf.
6 von 7 Kunden fanden die folgende Rezension hilfreich
Excellent book for those new to Octave. 19. August 2011
Von Benjamin P. Abbott - Veröffentlicht auf
Format: Taschenbuch
The cover of "GNU Octave - Beginners Guide" sums us my view of this book rather nicely, "Learn by doing: less theory, more results."

This book is targeted toward those just beginning to use GNU Octave. The book is written in a style that finds a middle ground between a textbook and a how-to. As it is well organized, experienced users may also find it useful as a reference.

Essential topics such as an introduction to GNU Octave itself, language syntax, and the use and application of GNU Octave are provided. In addition, detailed description of the installation process for Windows and Linux systems is also provided.

There are several advanced features of GNU Octave that provide great value, but are often overlooked by beginners and even the more advanced users. This book provides a good introduction to many of these. For example, advanced topics that such as vectorization, documentation, package development, linking to C++, and Octave Forge (web based community of users) are introduced in a with a welcome level of clarity.
3 von 3 Kunden fanden die folgende Rezension hilfreich
Kept simple and very useful 8. November 2012
Von TB (aus) - Veröffentlicht auf
Format: Taschenbuch
I was very surprised by this book having tinkered with Octave since '96 so I was inspired to write a review.

Best of all it is written specifically for Octave and I have learnt new tricks that would be hard pick up from the official documentation, which is mainly a reference. The book has a text book style with simple examples to teach good scripting techniques and the latest graphics commands. It is quite general and doesn't focus on specialised (hard core Math, Stats, Engineering) functions that come with Octave, as that's what the official documentation is for.

I highly recommended getting this relatively cheap book as it will save you hours of time cross-checking between the official 'GNU Octave' documentation, the numerous Howtos, Lecture Notes, summary sheets scattered on the Net, many of which are now outdated and M@lab books just to get things going.
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