Chem 1405 Chapter 1b.doc
... Rule 1. If the digit following the last digit to be retained is less than five, drop the other digits and leave the last digit unchanged. Rule 2. If the digit following the last digit to be retained is 5 or more than five, the last digit to be retained is increased by one unit and drop the other dig ...
... Rule 1. If the digit following the last digit to be retained is less than five, drop the other digits and leave the last digit unchanged. Rule 2. If the digit following the last digit to be retained is 5 or more than five, the last digit to be retained is increased by one unit and drop the other dig ...
Musical notation
Music notation or musical notation is any system used to visually represent aurally perceived music through the use of written symbols, including ancient or modern musical symbols. Types and methods of notation have varied between cultures and throughout history, and much information about ancient music notation is fragmentary.Although many ancient cultures used symbols to represent melodies, none of them is nearly as comprehensive as written language, limiting our modern understanding. Comprehensive music notation began to be developed in Europe in the Middle Ages, and has been adapted to many kinds of music worldwide.