Bitcoin vs. Gold

By | March 10, 2017

Bitcoin was raising, and the price for one Bitcoin is now around the same as for one ounce of gold. So isn't it insane to pay for one Bitcoin as much as for one ounce of gold? According to this article there are currently between 155,244 tonnes and 2.5 million tonnes of gold in the… Read More »

SeSim - Stock Exchange Simulator

By | February 19, 2017

Earning money by day trading is considered to be extremely hard. I've often read that about 95% of people who attempt day trading will lose money. This might be true and coincidences with my observations among people I know, because I don't know anybody who is able to make money by day trading. But who… Read More »

Day Trading and Commission Fees

By | December 25, 2016

Imagine you were a day trader, and you make in average one trade per day on 200 days a year. Further imagine you have to pay a commission fee of $10 when buying shares, and again you have to pay a commission fee of $10 when selling shares, which is effectively $20 per trade. So you can simply… Read More »

Integer Factorization Using Backtracking with Erlang

By | December 18, 2016

In an earlier post I showed an algorithm to factorize integers using backtracking. The algorithm was implemented in python. Here we have now the same thing in erlang. To run the code, copy the script and save it to a file named "factorize.erl". Then enter a shell and compile the module using the following command:… Read More »

Problems with FTP when Installing FreeBSD

By | February 13, 2016

If you have problems installing FreeBSD using FTP, because you are behind a NAT that doesn't handle FTP properly, simply chose HTTP. In the "Mirror Selection" dialog select the "Main Site", and then chose "Other": And now simply replace ftp with http: The installation should work now.