Linux

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Cinnamon on Arch Linux

One of the best GNU/Linux distributions I used is Linux Mint Cinnamon edition. It’s quick, stable and good-looking. But some time ago, I discovered Arch Linux, and I immediately started using it. Thanks to its great possibilities to customize every bit of the system, I actually managed to recreate the Linux Mint look and feeling, but still having in the background the power of Arch Linux. Sadly some minor features that are present in Mint disappeared (quite obvious) in Arch, such as the right click “Uninstall” button in the main application menu.

Furthermore, recently I managed to get my nVidia card working on Linux, using bumblebee, and I discovered that there were no easy and quick means to use bumblebee to run a program from the desktop manager which didn’t involve opening a terminal.

So I thought: let’s try and fix it… In this post I’ll explain what I did and provide the links to download my modifications.

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HP11em v0.0.5

A HP11em emulator screenshot

HP11em v0.0.5, with many improvments, including a new calculator skin (CC BY-SA 4.0), a complete core rewrite, fixed and scientific notation and keyboard support, is now available.

You can download it from GitHub:

http://github.com/rapgenic/hp11em.git

For further information see the HP11em page.

 

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HP11em

HP11em, a C++, GTK, Linux, simple HP-11C calculator emulator, is available on GitHub.

The HP-11C was a mid range RPN scientific programmable calculator, produced by Hewlett Packard from 1981 to 1989; it was part of the HP Voyager series, which included a basic scientific calculator (HP-10C), a business one (HP-12C), an advanced scientific one (HP-15C) and another one for computer programmers (HP-16C), too.

This emulator aims at reproducing the same functionalities of the HP-11C, without the need of any original ROM.

Currently it is not even remotely to be considered completed, but I decided to publish it, under the GPLv3 license, of course, so that anybody who is interested in it can contribute.

At the moment it offers the following functionalities:

  • simple GTK GUI, almost finished, with a realistic picture of the original calculator
  • (very) basic operations (+, -, ×, ÷, log, ln, sqrt, square, int, frac, 1/x, y^x, 10^x, abs, chs, pi);
  • storage(STO) and recall(RCL) functions;
  • stack operations (shift, x y exchange, CLx).

It does NOT support the following functionalities:

  • trigonometric functions;
  • percent difference;
  • polar and rectangular conversion;
  • statistic functions;
  • engineering notation;
  • exponents (EEX key);
  • programming mode.

For more information about HP-11C see the following links:

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HPKit v0.2.1 is available, including minor bugfixes, improvements and code cleaning.

You can download it from GitHub:

https://github.com/rapgenic/hpkit.git

For further information see HPKit page.

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HPKit v0.2 released

HPKit v0.2 is available, with various enhancements and bugfixes:

  • new hprologix tool, to configure the Prologix adapter;
  • added SAD (Secondary ADdress) support;
  • full Prologix command set supported;
  • fixed a bug in the hplisten tool.

You can download it from GitHub:

https://github.com/rapgenic/hpkit.git

For further information see HPKit page.

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HPKit released

HPKit release 0.1, a set of simple shell linux tools to communicate to test equipment, Hewlett Packard/Agilent and others, via GPIB/HPIB interface.

You can download it from GitHub

https://github.com/rapgenic/hpkit.git

It consists of three programs:

  • hplot, emulates an HP plotter to print or save a screenshot of the instrument’s display; it can be used with hp2xx (https://www.gnu.org/software/hp2xx/)
  • hplisten, similar to hplot, though it doesn’t emulate a plotter, but only listens for generic data
  • hptalk, used to send commands to the instrument and read its answer.

The code is released under GNU GPLv3 license, so feel free to download, edit and redistribute it.

For further information see HPKit page.

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