Cube root polar angle by three in order to define a cube root. With this definition, the principal cube root of a negative number is a complex number, and for instance will not be −2, but rather . This difficulty can also be solved by considering the cube root as a multivalued function: if we write the original complex number "x" in three equivalent forms, namely The principal complex cube roots of these three forms are then respectively Unless , these three complex numbers are distinct, even though the three representations of "x" were equivalent. For example, may then be calculated to
The Root Glass Company The Root Glass Company The Root Glass Company originated as Root Glass Works in Vigo County, Indiana. Businessman and Pennsylvania native Chapman J. Root (November 22, 1864 - November 20, 1945) opened the original glass company on May 27, 1901, at Third and Voorhees Streets a year after he moved to the city of Terre Haute, Indiana. By 1904 the company was manufacturing beverage bottles for Coca-Cola as well as several other beverage companies in the area. Between 1905 and 1912 the Root Glass Company workforce increased from 600 to 825 employees. In 1915, Root's company entered a Coca-Cola contest