i know the comuter programme c,c+ construction. The sql programme i can make a new quary for making tables separation of data sorting of data ect ,In visual basic manu bar making with different action dialoge box making and executing ,i can use programme latex for developing or typing content of books with all concept ofmathematics ,scilab also use for making content of mathematics.ms word,excel,power point this type of all application and its advanced usege