Want to know what a function apparence like? Cadeau. Want to see how to solve an equation, step by Marche? Can do. Want to know the sustentation facts of a cubic parsec of fried chicken? Not a problem. Wolfram Alpha ah a bizarrely broad and sophistic http://www.languageeducationstudies.ir/index.php?option=com_k2&view=itemlist&task=user&id=259557