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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Ready-to-use App bundles are outdated and/or do not run reliably.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.

The old how-to Install Octave 3 on Mac OS X El Capitan is obsolete now.

Continue reading Install Octave 4 on Mac OS X El Capitan

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Octave 4 upgrade via MacPorts fails after “port upgrade outdated”

To keep MacPorts and its ports up to date a frequently performed  sudo port selfupgrade and sudo port upgrade outdated do the job.

Unfortunately the update/grade of GNU Octave fails:

Error: org.macports.fetch for port octave returned: must set at least one Fortran variant (e.g. +gfortran, +gccX, +g95)

Continue reading Octave 4 upgrade via MacPorts fails after “port upgrade outdated”

Install DISLIN 10.6 on Ubuntu 16.04 Xenial Xerus

DISLIN is a very nice and well-documented 2-D and 3-D plotting framework for Fortran and some other programming languages. Furthermore DISLIN provides some widgets to create simple graphic user interfaces (GUIs).

This how-to describes how to install DISLIN (version 10.6) on an arbitrary Ubuntu system (here: 16.04 – Xenial Xerus) and how to compile and link a sample Fortran 90 program with the shared and static libraries.

This how-to should work on Ubuntu-related distributions as Linux Mint, etc.

Continue reading Install DISLIN 10.6 on Ubuntu 16.04 Xenial Xerus

Install Octave 3 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Ready-to-use App bundles are outdated and/or do not run reliably.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 3.8.2 with MacPorts (Version 2.3.4) on Mac OS X 10.11 (El Capitan). It shows how to avoid pitfalls and workaround bugs. Finally it gives some hints regarding configuration.

Currently MacPorts 2.3.4 supports GNU Octave 4.0.3. That make this how-to obsolete. Refer :

Continue reading Install Octave 3 on Mac OS X El Capitan

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Java-Update simple and automatic

For security reasons a lot of professional users work with standard user privileges. Nevertheless installations, updates, etc can be done by the administrator entering the administrator password without log out and log in as an dedicated administrator. There is one exception: Java.

Continue reading Java-Update simple and automatic

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Other spell-checking language in MdCharm

To add another language in the spell checker of the markdown editor MdCharm in Windows or GNU/Linux, download the desired  dictionary (*.oxt) of OpenOffice. Unzip it with e.g. 7-Zip (Windows) or e.g. Roller (GNU/Linux) and copy the aff– and dict-files to the folder “spellcheckdict” of the MdCharm installation.

Java’s Swing GTK LaF nice and pretty on Ubuntu

In Ubuntu Java apps which use Swing’s GTK Look and Feel (LaF) do not appear as native applications.

The menus does not have borders and do not appear as app menus on the top of the screen nor provide HUD support. The fonts on buttons and dialog boxes are thinner and do not match to the native look and feel.

This how-to describes step by step how you improve the GTK LaF of Java’s Swing apps. Continue reading Java’s Swing GTK LaF nice and pretty on Ubuntu