RIC-1069 Maths terms and tables

List of mathematical terms
Dependent events
Where the result of one event depends
on the result of another event. [See also
Independent events.]
e.g.
The probability of a lotto number
less than 10 depends on what
numbers have already been
drawn.
Depth
Vertical distance downwards from a given position [see Altitude].
Descending order
An ordered arrangement according
to number or size, beginning with the
largest.
e.g.
16, 13, 10, 7 are in descending
order.
Diagonal
A line segment joining two vertices
that are not next to each other; thus
a rectangle has two diagonals but a
triangle has none.
e.g.
In the rectangle
ABCD, the diagonals
are the line segments
AC and BD.
A
D
B
C
Diameter
The width of a circle, determined by
the length of any chord that passes
through the centre of the circle
[see p. 94].
e.g.
The diameter of
the circle shown is
the length of line
segment AB.
A
B
Die (Dice)
A polyhedron, usually a cube, marked
with dots or numerals on each face
and used for games of chance. [Dice
is plural for die, and is often incorrectly
used for both singular and plural cases.]
e.g.
Difference
The amount by which two numbers
differ.
e.g.
The difference between 6 and
10 is 4.
Digits
The symbols used in a numeration
system. [Digits are also fingers—from the
Latin digitus—as fingers have always
been used for counting.]
e.g.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are the
digits used in our Hindu-Arabic
decimal system.
16
Maths terms and tables R.I.C. Publications ® www.ricpublications.com.au