Some Basics of Algebra
... indicate that 3 is an element or member of set B. We can also write 4 B to indicate that 4 is not an element of set B. When all the members of one set are members of a second set, the first is a subset of the second. If A = {1, 3} and B = { 1, 3, 5, 7}, we write A B to indicate that A is a subse ...
... indicate that 3 is an element or member of set B. We can also write 4 B to indicate that 4 is not an element of set B. When all the members of one set are members of a second set, the first is a subset of the second. If A = {1, 3} and B = { 1, 3, 5, 7}, we write A B to indicate that A is a subse ...
Temperature
... are either very large or very small. We need a simple way to deal with these numbers without having to write them out in the usual way. For example: a nanometer is 0.000000001 meters or there are 1,000,000,000 nanometers in a meter This is very cumbersome to write and to talk about. Let’s look at a ...
... are either very large or very small. We need a simple way to deal with these numbers without having to write them out in the usual way. For example: a nanometer is 0.000000001 meters or there are 1,000,000,000 nanometers in a meter This is very cumbersome to write and to talk about. Let’s look at a ...
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.