The Ben 10 cube presented enough interest. Although it is like the classic Rubik’s cube, it had some peculiarities.
Specifically, in order to solve it you need to concentrate your attention on the central square of each side so you can always orient it accordingly in the right direction to finalize plans without irregularities.
Within the framework of the course “Programming II – Laboratory” (Department of Informatics and Communications, T.E.I. of Central Macedonia) we were asked to implement as homework a program that reads characters from the standard input and then export to standard output a frequency histogram of the characters that appear.
This project refers to an Arduino sketch which is used to produce LEDs animations. So, we use an 8-bit shift register (namely the 74HC595). This way we can drive 8 different LEDs in the output committing only three PINS of the Arduino.
If we want to drive more LEDs, we connect into a cascade form two or more (depending on the number of LEDs we want to support) shift registers and act accordingly.
Within the framework of the course “Numerical Methods in Programming Environments – Theory” (Department of Informatics and Communications, T.E.I. of Central Macedonia) we were asked to develop an optional program that implements Müller’s numerical method for finding the root of equations of the form f(x) = 0.
A nice problem that intrigued me is the “Rubik’s Magic”. I could solve the problem fast enough. In the beginning, I thought it to be quite difficult. But I finally was able to join the three rings with little effort.
I will always post my best solutions on this post. I try to set up personal records.
Surely, I can not compete with the champions but I think I will one day reach their standards with continued practice.
Personal record: 5 seconds.
Since I got my hands on Rubik’s cube, namely the classical one (3x3x3) I got hooked on solving it. I tried several times to solve it but more often I smashed it on the wall or give up.
But recently I learned that Rubik’s cube is solved with algorithms. So when I learned the algorithms and the solution methodology, I started with good intentions. So after a while, I could solve it by applying the algorithms. I have also solved the cubes with 2x2x2, 4x4x4, 5x5x5 and 6x6x6 dimensions. Knowing how to solve these cubes, you can solve any major dimension ones. In larger cubes, there are likely more parity errors. This does not prevent you from solving them.
It was a very interesting experience for me to participate in the mission of the Department of Informatics and Communications of the T.E.I. of Central Macedonia in Thessaloniki, where the Department took part in the Infosystem 2009 exhibition.
Within the framework of the course “Visual Programming – Theory” (Department of Informatics and Communications, T.E.I. of Central Macedonia) we developed a clinic management application as a semester project.
The database of the application was implemented in Microsoft SQL Server and the graphical user interface in Borland C++ Builder.
More specifically, this application enables the end user to manage different patients, visits, appointments, diagnoses, treatments, prescriptions, tests, links.
Rubik’s 360 Sphere is quite interesting. Once you understand how it works, the solution is then quite easy. Specifically, you need to concentrate your attention on the two axes as well as the two pendulums that are found inside the spheres.
The project ‘dec2bin’ (decimal to binary converter) is the implementation of an idea I had for some time. I have to admit that sometime in the past when studying possible ways of programming embedded systems with the programming language C and C++, I felt the need to be able to produce, through a program, supposed memory addresses in the form of binary numbers.
A beautiful and dynamic experience that I hope will be repeated again.
Congratulations to the organizers and participants of this conference.
Their contributions to Free Software was invaluable.
Efstathios Chatzikyriakidis 