Let's examine the following graphs: Again, the period of the original sine curve has changed here, as we would expect. The difference with a negative value of b however, is our sine curves have the same period as the positive values of b above, but now they are reflected across the x-axis. For a direct comparison between positive and negative values of b, click here.
Quick Answer. As of 2014, Joachim Gauck is the president of Germany. The 72-year-old was elected to the position on March 18, 2012, in Berlin after receiving 991 of the 1,228 valid votes.
Each new President is nominated by the European Council and formally elected by the European Parliament, for a five-year term. Once appointed, he or she, along with the Commission, is responsible to Parliament. As of 2017, the current President is Jean-Claude Juncker, who took office on 1 November 2014. He is a member of the European People's Party (EPP) and is the former Prime Minister of Luxembourg. Juncker is the twelfth President and his First Vice-President is Frans Timmermans.