in the equations. However, according to other sources, there is no historical evidence for this. In Modern Arabic mathematical notation, sīn, i.e. šīn without its dots, often corresponds to Latin x. In Moroccan Arabic, the letter , šīn with an additional three dots below, is used to transliterate the sound in Spanish loan words. In Unicode, this is . Character encodings References External links Phoenician alphabet Arabic letters Hebrew letterss