There are a number of important rules of index numbers: y a × y b = y a+b; Examples. It is written as a small number to the right and above the base number. index (1) A statistical indicator that measures changes in the economy in general or in particular areas.An example is the cost-of-living index. See more. The power, also known as the index, tells you how many times you have to multiply the number by itself. Browse the definitions using the letters below, or use the Search above. For instance, if the formula for the terms a n of a sequence is defined as "a n = 2n + 3", then you can find the value of any term by plugging the value of n into the formula. Absolute Minimum. A Maths Dictionary for Kids is an online math dictionary for students which explains over 955 common mathematical terms and math words in simple language with definitions, detailed visual examples, and online practice links for some entries. If there … Index (publishing), a detailed list, usually arranged alphabetically, of the specific information in a publication Index cards in a rolodex or old card catalog, early and mid 20th century technologies for maintaining such lists; Index (mathematics), for various meanings of the word in mathematics AA Similarity. (plural indices (ˈindisiːz)) in mathematics the figure which indicates the number of times a figure etcmust be multiplied by itself etc. Indices are a useful way of more simply expressing large numbers. To divide expressions with the same base, copy the base and subtract the indices. An index is a system used to make finding information easier.. Index could also mean: . Mathematics Areas for Assessment. Index for Advanced Algebra/Pre-Calculus Math terminology from Pre-Calculus, Advanced Algebra, Functions, and Analytic Geometry. In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought. This is the first index law and is known as the Index Law for Multiplication. Acceleration. There are a number of important rules of index numbers: y a × y b = y a+b; Examples. For example, 27 can be written in index form as 3^3. For example, 2 5 means that you have to multiply 2 by itself five times = 2×2×2×2×2 = 32. Definition. Show Ads. Information and translations of index in the most comprehensive dictionary definitions resource on the web. Continually updated, extensively illustrated, and with interactive examples. The original articles are from the online Encyclopaedia of Mathematics, published by Kluwer Academic Publishers in 2002. Math Tutorials Geometry Arithmetic Pre Algebra & Algebra Learn how to handle money at Math is Fun. Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. Exponents. Definition of root as used in math. Example 7. Absolute Value of a Complex Number. Hide Ads About Ads Author has 788 answers and 1M answer views In the radical expression above, n is the index, x is the radicand, and the math symbol indicating the taking of roots is the radical. For K-12 kids, teachers and parents. Easy-to-understand definitions, with illustrations and links to further reading. They also present us with many useful properties for manipulating them using what are called the Law of Indices. Knowing how to work with ratios and proportions is very handy in chemistry classes, especially when working with different units of measurement. The S&P 500 Index is also very common, comprising over 70% of the total market cap of all stocks traded in the U.S. Hide Ads About Ads (Other names for index are exponent or power.) Show Ads. Definition of index in the Definitions.net dictionary. Index for Geometry Math terminology from plane and solid geometry. An example is being asked to write the number 16 in index form using base 2. Because 16 is 2x8, and 8 is 2x4, and 4 is 2x2, 16 in index form using base 2 would be written as 2^4. The U.S. Supreme Court: Who Are the Nine Justices on the Bench Today? Acute Angle. In mathematics and computer programming, index notation is used to specify the elements of an array of numbers. The exponent (or index or power) of a number says how many times to use the number in a multiplication. To multiply expressions with the same base, copy the base and add the indices. In this example: 82 = 8 × 8 = 64. Continually updated, extensively illustrated, and with interactive examples. Acceleration. The Nasdaq Composite is a broad market index that encompasses about 4,000 issues traded on the Nasdaq National Market -- virtually every firm that trades on the exchange. Index for Advanced Algebra/Pre-Calculus Math terminology from Pre-Calculus, Advanced Algebra, Functions, and Analytic Geometry. An index number is a number which is raised to a power. The power, also known as the index, tells you how many times you have to multiply the number by itself. … Math Glossary: Mathematics Terms and Definitions Look Up the Meaning of Math Words. Part I is addition and subtraction, Part II is Multiplication and division, and I am happy with the way the sections and subsections are working, but I just want to definitions… Abscissa. The index tells what root is being taken. Additive Inverse of a Matrix. Let's start with some dictionary definitions: Ratio: The relative size of two quantities expressed as the quotient of one divided by the other; the ratio of a to b is written as a:b or a/b. Meaning of index. Khan Academy. The index of a number says how many times to use the number in a multiplication. Definition. Index definition is - a list (as of bibliographical information or citations to a body of literature) arranged usually in alphabetical order of some specified datum (such as author, subject, or keyword): such as. With more than 8,000 entries, illuminating nearly 50,000 notions in mathematics, the Encyclopaedia of Mathematics was the most up-to-date graduate-level reference work in the field of mathematics. 2 4 × 2 8 = 2 12. How to use index in a sentence. 1. A matrix is a rectangular array of numbers (or other mathematical objects) for which operations such as addition and multiplication are defined. Additive Inverse of a Matrix. Go to the next page for the first of many questions and fully worked out solutions for you to practice. Any number, except 0, whose index is 0 is always equal to 1, regardless of the value of the base. Number and Algebra – develop efficient strategies for … With computer games you play by running, jumping or finding secret things. The plural of index is indices. Acute Triangle. CEO Compensation and America's Growing Economic Divide. FINANCE, ECONOMICS plural indices | indexes a system that measures the present value of something when compared to its previous value or a fixed standard: The house price index estimates … Indices are also used to gauge activity in an economy. Mathematics definition is - the science of numbers and their operations, interrelations, combinations, generalizations, and abstractions and of space configurations and their structure, measurement, transformations, and generalizations. Accuracy. What does index mean? Indices, expanded form, factor form, index form, index notation, base, index, power, exponent, basic numeral, basic number. Quadratic Function. To manipulate expressions, we can consider using the Law of Indices. 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