GNU Octave vs. Matlab

Question

xavion 2011-8-23

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Discovered a programing tool called Octave a few weeks ago. The language is almost identical to basic Matlab. The discriminating difference is that Octave is open source and free. For my robotics modeling applications, its more than adequate. I will likely stop spending money on Matlab, especially if the Octave organization develops a basic Simulink-like capability. Here's an interesting thread in the Octave website:

http://octave.1599824.n4.nabble.com/Simulink-for-Octave-td3746480.html

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Jan 2011-8-24

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I do not dismiss Octave. It is an excellent piece of code. I just trust MATLAB more currently, e.g. when creating programs for clinical decision making. Of course one can write bad programs in any programming language. But the extremly well tested code of MATLAB and the powerful user community support my trust in this product.

Nevertheless, I know, that the majority of internet users rely on the Linux driven Google servers and other free software package reached the maximum level of stability also. Therefore I see an important potential for Octave to get more influence for scientific computing in the future - and for SciLab, SciPy, FreeMat also. And I see what TMW is doing in response to Octave: Improve their stable product in small secure steps and offer an efficient support.

Imagine you develop a brake system for a car (a real one, not a simulation) and get some unexpected results. Then you can call your local TMW consultant and ask, if it is a problem of Matlab or of your program. If the brakes are working finally, this is worth 0.1e6$ or 10.0e6$. Now try this with Octave.

As you've written: "The language [Octave] is almost identical to basic Matlab." When using _advanced_ instead of _basic_ Matlab features, the differences between these platforms become more considerable.

@Readers: I'm *not* payed by TMW and this is *not* a shameless advertisment for MATLAB(R), but my personal opinion. Xavion has other preferences than me and other forum users, but I do not agree that a deviating opinion is worth to be tagged as spam.

Walter Roberson 2011-8-24

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@Jan: I would say it is an interpretation.

David Verrelli 2019-1-24

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Per Jan's comment above — "When using _advanced_ instead of _basic_ Matlab features, the differences between these platforms become more considerable." — it may have been advisable for the OP to resist endorsing Octave until they had more than "a few weeks" of experience with it.

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Answer 1

Jan 2011-8-23

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Fine, Xavion. I like Octave also very much. The availability of the source code is a big advantage, because I can search for bugs for my own and adjust features for experiments. E.g. I cannot get MATLAB to allocate the memory for arrays with an 128-bit alignment, but in Octave I can control this -

- when I spend hours and days and weeks of programming, debugging and testing. And as long as I want to work with a running system, I decide to spend money for Matlab for the serious work.

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Answer 2

Daniel Shub 2011-8-24

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One discriminating difference between Octave and MATLAB is the FOSS nature of Octave. Another difference is its lack of advanced features. Last time I looked, support for OOP and GUI development were substantially lagging (possibly because MATLAB is progressing in these areas rapidly) and the IDE (including mlint) were substantially behind. I pay TMW for software maintenance so I can get new features, improvements and bug fixes on a regular basis. If you are willing to wait years for new features to trickle down, then Octave might work for you.

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Jan 2011-8-24

You do not have to *wait* years for new features, if you implement them by your own. I've implemented/improved some features for MATLAB also, as you can see in my FEX submissions. And the FEX allows for including some FOSS (free and open source software) nature to your proprietary MATLAB platform.

Therefore I do agree +1.

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Answer 3

Paulo Silva 2011-8-24

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The Mathworks has nothing to fear, their software (MATLAB+Simulink+Toolboxes) is very mature and well documented, it is expensive but it does worth the money, Octave can be the starting point until you need more than it can provide or hit one of the snags it still has, MATLAB is more adequate for demanding professionals and academic students.

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Answer 4

Kayemba Luwaga 2023-7-20

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It can be hard to admit, but MATLAB allows amazing "shortcuts" in product development you're going to get anywhere else, you can easily arrive at the most optimal system configuration for your product design with MATLAB; then your can fine tune the configuration with other tools like octave especially if you don't have good processing hardware in case of a system/signal processing/control project, Cheers