Coins of the Maltese lira former banknote. In 1988 a new coat of arms was adopted showing a heraldic representation of the Maltese flag, a mural crown and a wreath of olive and palm trees. The coin series of 1991 depicted the new coat of arms, but the reverse side remained the same. This series remained in use until 2007, being withdrawn in January 2008 upon the introduction of the Euro. They were demonetised in 2010. Coins of the Maltese lira Coins of the Maltese lira have been struck from when Malta adopted decimal currency in 1972, to 2007, after which Malta adopted the euro.
Decimal decimal fractions were non-positional. However, counting rod fractions were positional. Qin Jiushao in his book Mathematical Treatise in Nine Sections (1247) denoted 0.96644 by J. Lennart Berggren notes that positional decimal fractions appear for the first time in a book by the Arab mathematician Abu'l-Hasan al-Uqlidisi written in the 10th century. The Jewish mathematician Immanuel Bonfils used decimal fractions around 1350, anticipating Simon Stevin, but did not develop any notation to represent them. The Persian mathematician Jamshīd al-Kāshī claimed to have discovered decimal fractions himself in the 15th century. Al Khwarizmi introduced fraction to Islamic countries in the early 9th