Install Octave 4 on Mac OS X El Capitan

To install GNU Octave on a Mac is not as easy as on Microsoft Windows® or GNU/Linux.

Ready-to-use App bundles are outdated and/or do not run reliably. The installation with a package manager as MacPorts or Home Brew does not work out-of-the-box.

This How-To describes how to install Octave 4.0.3 with MacPorts (Version 2.3.4) on Mac OS X 10.11 (El Capitan). It shows how to avoid pitfalls and workaround bugs.

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