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Browse High School Definitions
Stars indicate particularly interesting answers or
good places to begin browsing.
 Mathematical Meaning of Undefined [12/19/2002]

What is the meaning of the word 'undefined' in mathematical terms?
 Mathematical Models [07/17/2002]

What is a mathematical model, and how would it be used?
 Mathematics, Logic, and Intuition [05/27/2003]

How is math related to logic and intuition?
 Math Symbol for C [12/15/1997]

I am puzzled by one symbol of typing math. What does the upper case
letter C mean? As in (2C1) (3C1) / (47C2) = 6/1081.
 Math Symbols [04/07/1997]

What do the common math symbols (backward E, upsidedown A, etc.) mean?
 Matrix Multiplication [09/04/1997]

I am doing a project in Algebra 2 and must research matrix
multiplication.
 The Meaning of Locus [03/04/2003]

What is the locus of points equidistant from two parallel lines 8
meters apart?
 Meaning of 'ominoe' [11/07/2001]

We are drawing pictures of dominoes, triominoes, tetrominoes, and
pentominoes. What is the meaning of the root "ominoe"?
 The Meaning of 'Or' in Logic Statements [12/19/2003]

If a logic statement says, 'James is taking fencing or algebra,' does
that mean he is taking one class or the other, or could he be taking
both of them?
 Meaning of R++ [9/12/1996]

What do the symbols R_{+} and R_{++} mean?
 The Meaning of Space [07/23/1997]

Is the term 'Space' a mathematical object? I have seen it in "Vector
Space," "Banach Space," and "Hilbert Space," but are they the same thing?
 Meanings of Math Symbols [06/19/1997]

In math notation, what do the vertical bar, the colon, and the solid
black square (at the end of a proof) mean?
 Mean, Median, and Mode [07/15/1998]

Can you explain the three ways to represent a group  mean, median, and mode? I am having trouble understanding the mode.
 Metric System Prefixes [09/17/1997]

My algebra teacher wrote the word teraflops on the board and told us to
find the meaning.
 Moebius Strips: How Many Sides and Surfaces? [10/18/2001]

What is the difference between a side and a surface?
 Name of Bar That Denotes a Repeating Decimal [08/30/2004]

What is the name of the bar that goes over a digit or group of digits
that signifies that the digit or group repeats?
 Names of Parts of a Cone [8/2/1996]

Are the components of a net of a cone called faces in all cases, or only
for polyhedra?
 Names of Polynomials [11/25/1997]

Are polynomials with higher degree than 5 named? What are they called?
 Names of Polynomials with More Than Three Terms [03/25/2004]

What are the official, mathematical names for polynomials with more
than three terms? For example, a polynomial with one term is a
monomial, with two terms is a binomial, and with three terms is a
trinomial. What is a polynomial with more than three terms called?
 Naming Geometric and Arithmetic Progressions [04/04/2003]

Why is an exponential progression called 'geometric'? Why is a linear
progression called 'arithmetic'?
 Napoleon's Triangle [08/10/1999]

What is Napoleon's triangle?
 Negating Statements [10/27/1998]

What is negation? What is a statement? How do you negate a statement?
 Nets in a Geometrical Sense [03/07/1999]

What is the "net" of a shape?
 Nonagon or Enneagon? [02/06/2003]

Is 'enneagon' really the correct name for a 9sided polygon?
 NonEuclidean Geometry [10/22/2001]

What is nonEuclidean geometry? What two concepts are different from
Euclidean geometry?
 NonEuclidean Geometry for 9th Graders [12/23/1994]

I would to know if there is noneuclidean geometry that would be
appropriate in difficulty for ninth graders to study.
 Normal Distribution Curve [11/13/2000]

What is the normal distribution curve?
 No Slope: An Ambiguous Term [05/08/2003]

What is the distinction between a line with a slope of zero and a
line with no slope?
 Noting Nothing: Braces around Zero vs. Empty Braces [08/02/2010]

A student struggles to distinguish among the meanings of {0}, {}, and the symbol phi.
Doctor Ian clears up the set theory notation, then emphasizes that the empty set can,
itself, be an element.
 Number of Cylinder Edges [04/01/2002]

My son was asked "how many edges are there on a solid cylinder?" on a
recent math examination. His answer was "2" and it was marked incorrect.
 Number Word Etymologies [05/03/2001]

Who made up the names for numbers?
 Obtuse and Oblique [7/29/1996]

Are the terms "obtuse" and "oblique" interchangeable?
 Obtuse Angles Function [08/04/2014]

A student wonders why the relationship between trigonometric functions and triangle
side ratios holds not just for right triangles, but for all triangles. Doctor Peterson models the trigonometry of a nonacute vertex by redrawing it on the Cartesian coordinate system.
 Odds Slang for Probability? [02/06/1997]

Is "odds" slang for probability?
 One and Twosided Polygons [12/07/1999]

Can you explain what a monogon and a digon are?
 OnetoOne Correspondence and Transfinite Numbers [12/10/1999]

Can you explain what Cantor meant by onetoone correspondence, and
transfinite numbers?
 Opposite of Percentage [07/31/2001]

I am trying to write a document explaining a common procedure:
calculating a discounted price. What is the name given to the term (1
discount_rate)?
 Ordered Pairs vs. Coordinates [9/9/1996]

What is the difference between an ordered pair and coordinates?
 Order of Quadrant Numbers [10/21/2002]

Why are quadrants numbered that way?
 Origin of the Null Symbol [03/05/2003]

Where did the null symbol come from?
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