the finger next to the thumb | the act of classifying and providing an index in order to make items easier to retrieve |
an alphabetical listing of names and topics along with page numbers where they are discussed | |
a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time | |
a mathematical notation indicating the number of times a quantity is multiplied by itself | |
a numerical scale used to compare variables with one another or with some reference number | |