|
|
|
| Home
/ Online Tools / Glossary |
|
|
|
| |
|
|
|
| |
|
| |
| |
e
Representation of the number (2.7182818...)
used as the base for natural logarithms.
edge
The line segment where two faces of a polyhedron
meet.
element
A member of a set.
eliminate
To remove, to get rid of.
ellipse
The set of all points in a plane such that
the sum of the distances to two fixed points
is a constant.
empty set
A set that contains no elements.
endpoint
On a ray, segment, arc, or vector, a point
at which the curve begins or ends; a point
which touches only one other point on the
curve.
equals
To be the same in value (symbol: =).
equation
A mathematical statement that says that two
expressions have the same value; any number
sentence with an =.
equidistant
The same distance.
equilateral
A figure containing all equal sides.
equilateral triangle
A triangle that has three equal sides.
equivalent
Two or more expressions that have the same
value.
equivalent equations
Two equations with the same solutions.
equivalent fractions
Fractions that reduce to the same number.
error of measurement
The difference between an approximate measurement
and the actual measure taken.
estimate
An approximate calculation of a value.
Euler's formula
A formula relating the number of vertices
(V), faces (F) and edges (E) of a polyhedron.
(V+F-E=2)
evaluate
To substitute number values into an expression.
even number
A natural number that is evenly divisible
by 2.
event
In probability, a set of outcomes.
expanded notation
Method of writing numbers as the sum of powers
of ten or as the sum of its units, tens, hundreds,
etc.
exponent
A number that indicates the operation of repeated
multiplication.
exponential function
A function in which the base e, the base of
the natural logs, is raised to some power.
expression
A mathematical symbol, or combination of symbols,
representing a value, or relation. Example:2+2=4
exterior angle of a polygon
The angle outside a polygon formed by extending
one of its sides.
|
|
|
|
|
|
|
