 |
 |
|
©1998 ThinkQuest
|
| |
|
|
©1998 ThinkQuest
|
absolute value: |
The distance from the origin to the coordinate x. |
absolute value of a complex number: |
The absolute value of a complex number a + bi is the square root of a square plus b square. |
additive inverses: |
Pairs of real number that have the sum 0. |
additive inverse of a matrix: |
For each matrix A, there is a matrix -A(the additive inverse of A), such that A + (-A) = Z. |
algebraic expressions: |
Expressions that are made up of variables, numbers, grouping sym- bols, operation signs, and exponents. |
amplitude: |
Half the difference between the maximum and minimum values of a periodic function. |
angle or depression: |
An angle that measures between 0' and 90' formed by a horizontal ray and a ray from the observer to the object observed below. |
angle of elevation: |
An angle that measures between 0 and 90 formed by a horizontal ray and a ray from the observer to the object observed above. |
arithmetic mean: |
The sum of the num- bers in a set divided by the number of numbers in the given set. |
arithmetic means: |
Terms of an arithmetic se- quence that are between two given terms. |
arithmetic sequence: |
For each positive inte- ger n, the sequence with the first term a, and nth term a, is an arithmetic sequence if and only if an = a1 + (n - 1)d. |
arithmetic series: |
The indicated sum of the terms of an arithmetic sequence. |
asymptotes (of a hyperbola): |
The lines within which the branches of the hyperbola lie, and which are approached by the branches as |x| increases. |
augmented matrix: |
The coefficient matrix for a system of linear equations with a final column included for the constants of the equations. |
axis of symmetry: |
A line in the plane of a graph such that the part of the graph on one side of the line is a reflection of the part on the other side. |
Note: The terms in this collection may not
be entirely accurate.
They are for reference only.
PREPARING