The Magic Square
Biographies of Math
Other Math Links
Ask The Experts
Visit Dr. Math
Visit our Dictionary
Who are We?
Click on the letter you want to look in
A rectangular array of numbers, algebraic symbols, or mathematical functions.
a value that is calculated by dividing the sum of terms by the number of terms. Also known as an average.
A value within a set of terms where there are an equal number of terms larger and smaller.
A decimal system of weights and measures, universally used in science, and the official system of measurement in many countries.
A device for measuring very small distances, objects, or angles, especially one based on the rotation of a finely threaded screw, as in relation to a microscope.
A unit of length equal to one thousandth (10-3) of a millimeter or one millionth (10-6)of a meter.
a whole number and a fraction
Example: 5 1/2
A number consisting of a whole number and a fraction or a decimal.
Example: 5 1/2, 7.34
A value in a set of data that occurs most often.
the process of repeating additions of the same number
Example: 9 x 9 =81
To Report Errors or Ask For Additions
copyright © 1997-2014
. All rights reserved.
allmath.com, mathbook.com and "virtual mathbook" ® are all service marks of
math book store