Cem Özdemir won the election in Baden-Württemberg partly by abandoning many of his Green Party's core issues. His party is still debating whether this was a good move.

Rangers "unequivocally" condemn Sunday's Old Firm fan disorder, while Celtic say "examples of unacceptable behaviour" must be addressed.

The message attributed to Mojtaba Khamenei was read by a presenter on Iranian state TV. He has not been seen in public since succeeding his father.

Quadratic regression is a classical machine learning technique to predict a single numeric value. Quadratic regression is an extension of basic linear regression. Quadratic regression can deal with ...