MATH WORDS,
AND SOME OTHER WORDS,
OF INTEREST
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A
- Abacus
- Abscissa
- Absolute Value
- Abundant Numbers
- Accumulate
- Accurate
- Achiral
- Acre
- Acute
- Ada, Computer Language
- Add
- Addend
- Adjacent
- Aeon
- Affine Geometry
- Agnesi's Witch curve
- Ahmes Papyrus
- Alabama Paradox - voting
- Alchemy
- Aleph-Null
- Algebra
- Algebraic Numbers
- Algorithm
- Aliquot Parts
- "All Models are Wrong" quote
- Altitude
- Altitude of triangle, Properties
- Amblygon
- Amicable Numbers or Pairs
- Amplitude
- Analemma
- Analogy
- Angle
- Angle Bisectors in a Triangle
- Angstrom (unit of length)
- Annual
- Annulus
- Annus Mirabilis - Newton's Miracle Year
- Anode - creation of the term
- Antares
- Antecedent
- Anti-Center
- Antiparallel
- Aphelion
- Apoapsis
- Apogee
- Apollonius Gasket
- Apollonius Point
- Apollonius Problem
- Apothem
- Apportionment
- Approval Voting
- Apse
- Apside
- Arbelos
- Arc
- Archimedes Square Dissection Puzzle
- Arc Sine or Sin-1
- Are
- Area
- Argand Diagrams
- Argument
- arithmetic
- Arithmetic Books, Early American
- arithmetic Books, First North American
- Arrive
- Asses' Bridge
- Associative
- Astroid
- Astronaut
- Astronomical Unit / AU
- Asymptote
- Atlas
- Atom
- Aubel's Theorem
- Average
- Avoirdupois
- Axiom
- Axis
B
- Babylonian Square Root Method
- Bacon, Francis; stained glass at Wren Library, Cambridge
- Bakhshali Manuscript
- Barometer
- Barrow, Isaac; stained glass at Trinity Chapel, Cambridge
- Barycenter
- Baryon
- Base
- Bayes' Theorem
- Bell Curve
- Bell's Numbers or Bell Numbers
- Benford's Law
- Bernoulli's Golden Theorem
- Bernoulli Numbers
- Bertrand's Postulate (a prime between n and 2n)
- The Big Bang
- bi-gon (two sided polygon?)
- Billion
- Bimedian of Quadrilateral
- Binary Numbers
- Binomial
- Binomial Coefficients
- Bisect
- Bisectors (ANGLE) in a Triangle
- Blackboard, History of
- Additional notes on History of Blackboards and slates
- Bode's Law
- Borda Voting
- Borrow (in Subtraction)
- Bottle Imp Paradox
- Bowditch Curves
- Box Plot
- Brachystochrone
- "Bracket X", or Bracket Function
- Brahmagupta's Formula
- Brahmagupta's Identity on the sums of two squares
- Brahmagupta's Multiplication method
- The Bride's Chair
- Bridge of Asses
- Brocard's Problem
- Bruns Constant
- Bureau
C
- C, symbol for Radians
- Caduceus
- Calculate / Calculus
- Calendar
- Camera / Camera obscura
- Cardinal
- Cardinality
- Carat
- Cardioid
- Caret
- Carmichael Numbers
- Carnot's Theorem
- Carroll's Logic Diagrams (by Lesis Carroll)
- Carry (arithmetic)
- Casting out nines
- Casting out elevens
- Catalan Numbers
- Catenary
- Cathetus
- Cathode - creation of the term
- Cauchy distribution
- Ceiling Function,

- Census
- Center
- Centroid or Center of Gravity
- Century
- Ceres
- Cesaro-Stolz Theorem
- Ceva's Theorem
- Cevian
- Chain or Gunter's Chain
- Chain Reaction
- Chaos
- Check
- Check methods for arithmetic
- Chebyshev's theorem.(a prime between n and 2n)
- Chie-no-ita, Chinese puzzle
- Chilihedron
- Chinese Checkers
- Chinese Postman's Problem
- Chinese Square Root Method
- Chiral
- Chi Square
- Choose
- Chord
- Circle
- Circuit
- Circulate Numbers
- Circumcenter
- Circumcircle
- Circumference
- Circumscribe
- Class
- cloff, commercial discount
- Clue
- Coefficient
- Collatz's Problem
- Collinear
- Combinations
- Commandino's Theorem
- Commutative
- Compass
- Complementary
- Complete Graph
- Complete Oriented Graph
- Complex Fraction
- Complex Numbers
- Component
- Composite & Compound
- Compute
- Concurrent
- Concyclic
- Condorcet Voting
- Cone
- Confidence Interval
- Confounding Variables (statistics)
- Congruent
- Conic Section
- Conic Surface
- Conjecture
- Conjugate
- Conjugate Angles
- Consequent
- Constant
- Contact Triangle
- Continuous
- Converse
- Convex
- Coordinates
- Corollary
- Correct
- Correlation
- Correlation Coefficient
- Cosecant
- Cosine
- Cosines, Law of
- Cosine Circle (2nd Lemoine)
- Cosmic Rays
- Cosmos
- Coss and Cossists
- Cotangent
- Cotes, Roger; stained glass at Trinity Chapel, Cambridge
- Counting Boards
- Counting Numbers
- Crafoord Mathematical Prize
- Cramer's Rule
- Crescent
- Critical Points
- Cube
- Cube roots, by hand
- Cuisenaire rods
- Cumulative
- Curator
- Curtate Cycloid
- Cusp
- Cybernetics
- Cyclic Quadrangles (Quadrilateral)
- Cycloid
- Cylinder
- Cylindrical Projection, MAP
D
- Dart, type of quadrilateral
- Data/Datum
- Dean
- Decade
- Des Cartes' Circle Thm
- Decimal Fractions
- Decimal Point & Decimal Comma
- Decimal Repeat Bar
- Decrease
- Degree
- Degrees, Why 360 in a circle?
- de Gua's Theorem.
- Deltoid
- Denominator
- Derangement
- Derivative
- Derive
- Determinant
- Deviation
- Devil's Curve
- Diagonal
- Diagram
- Diameter
- Diamond
- Dice / Die
- Dido's Problem
- Difference
- Difference symbol "~"
- Digit
- Digital Root
- Digon (two sided polygon?)
- Dimension
- Di-graph or Directed Graph
- Discount
- Discriminant
- Distance
- Divide
- Dividend
- Divide, Symbols for
- Divisor
- divisor function, sigmakn
- Dodecagon
- Dodecahedron
- Domain
- Dollar
- Dollar Symbol $
- Dot as symbol for multiplication
- Double Dummy
- Dozen
- Drawers of Dirichlet
- Droz-Farny Theorem
- Duplation and Mediation
E
- e for 2.71828...
- East
- Edge
- Egyptian Multiplication
- Einstein's Biggest Blunder
- Electricity
- Electron
- Ellipse
- Ellipsis
- Ellipsoid
- Empty Set

- Enantiomorphic
- End of proof symbol,

- Early American Math Textbooks
- Eon
- Eocene
- Eohippus
- Equal
- = , Equal Symbol
- Equation
- Equiangular
- Equilateral
- Equivalent
- Ether
- Euler Circuits
- Euler Line
- Euler Path or Circuit
- Euler's Planer Graph Theorem (proof) V+F=E+2
- Excenter and Excircle
- Explementary
- Exponent
- Extrapolate
F
- Factor & Factorial
- Factoring (as in "factoring a quadratic")
- Fagnano's Problem
- Fair division of Assets and Obligations, Discrete Math Notes
- February
- Fermat Point
- Fermat's Last Theorem
- Fermat's Little Theorem
- Feuerbach's Circle
- Fibonacci's Identity on the sums of two squares
- Fibonacci's Sequence
- Fields Medal
- First
- Floor Function,

- Focus
- Forest (planer graph)
- Formula
- Forty, (why there is no "U" in,)
- Four
- Fourth Proportional
- Fractal
- Fraction
- Fractional Exponents
- Fraction Bar
- Frequency
- Friday
- Frustum
- Function
- Fundamental Counting Theorem
- Furlong (length)
G
- Galaxy
- Galley method of Division
- Gallon
- Gallows Function,

- Gamma Function
- President Garfield's Pythagorean Proof
- Gas
- Gaudi Magic Square
- Gauging
- Gelosie Multiplication
- Geoboard
- Geocenter
- Geometric Mean
- Geometry
- Geometry, Royal Road to?
- Gergonne Point / Triangle
- Gibbous (phases of moon)
- Gilbert, Unit of measure
- Girard's Thm
- Gnomen
- Googol
- Gougu Rule
- Grad - angle measurement
- Grade (of road, etc.)
- Graham's Number
- Gram, unit of weight(mass)
- Graph
- Graph Paper
- Graphic Solutions to Quadratic Equations
- Graph Theory
- Grave, early unit for Kilogram
- Greater Than Symbol
- Greatest Integer Function
- Grebe Point
- Gross
- Gunter's chain"
- Gunter's scale"
H
- Half, 1/2
- Halma, board game
- Halmos symbol,

- Hamilton's Apportionment Method
- Hamiltonian Circuits
- Hanoi, Tower of Puzzle
- Harmonic Mean
- Harmonic Sequence
- Hash symbol, #
- Haversine
- Hawthorne Effect
- Heap Paradox
- Hectare
- Height
- HemiSphere
- Hein, Piet
- The Helen of Geometers
- Helium
- Helix
- Hermetic Seal
- Heron's Formula or Hero's Formula
- Heronian Mean
- Heron's Problem
- Hex, the game
- Hexdecimal
- Hinge
- Hippocrates Lune
- Hippocratic Oath
- Histogram /Histograph
- History, Notes on Math teaching
- Hoehn's Thm
- Hollerith Cards
- Hoppity, old Enlish board game
- Horizon / Horizontal
- Hornbooks
- Horsepower
- Hour
- Houses and Utilities Problem (proof)
- Hubble (Unit of distance)
- Hundred
- Hyperbola
- Hyperbole
- Hypercube
- Hypocycloid of Four Cusps
- Hypocycloid of Three Cusps
- Hypodermic
- Hypotenuse
I
- i for square root of -1
- identity and symbol ≡
- Ides
- Idiot
- IFF symbol
- Imaginary Numbers
- Incenter and Incircle
- Increase
- Increment
- Index
- Induction, Inductive Proof
- Inequality Symbols
- Infinitesimul
- Infinity
- Infinity Symbol
- Imperial Gallon
- Inscribe
- Int Function
- Integer
- Interpolate
- Interval
- interquartile range
- Inverse Sine or Sin-1
- Inverse Square Law
- Iodine
- Ion - creation of the term
- IQR
- Irrational Numbers
- Iridium
- Iris
- Ishango Bone
- Isogon - Isogonic Lines, Points, Symmetry
- Isometry
- Isomorphic
- Isomorphic symbol,

- Isoperimetric
- Isopleure, Isopleuron
- Isosceles
- Italian Method of Division
J
- January
- Japanese Tangram type puzzle
- Jefferson's Apportionment Method
- Jerk
- Johnson's Theorem
- Josephus Problems
- Julia Set
K
- Kaprekar Numbers
- Karat
- Kilogram Mass and Force
- Klein Bottle
- Kissing Circles Theorem
- Kite
- Knot, (Unit of speed)
- Knots and Knot Theory
- Kurschak's Theorem
- Kurtosis
L
- Lame's Numbers
- Lattice Multiplication
- latus rectum
- lb, Pound
- Law of Cosines
- Law of Large Numbers
- Law of Sines
- Law of Tangents
- League (measure of distance)
- Leg
- Lemma
- Lemniscate
- Lemoine Point / Circles
- Lens (intersection of two circles)
- Leptokurtic
- Less Than Symbol
- l'Hospital's Rule
- Liar's Paradox
- Lies, Damned Lies, and Statistics
- Lill Circle, A Graphic Solution to Quadratic Equations
- Limacon
- Limit
- Line
- Lissajous Figures
- ln for natural logarithm
- Loculus of Archimedes
- Locus
- Logarithm
- Log-line (instrument for nautical speed)
- Long Ton
- Lotka's Law
- Loxodrome
- Lozenge
- Lucas Sequence
- Ludolph's Number
- Lune
- Lurking Variables (statistics)
M
- "m" for Slope
- Macron
- Magic Squares
- Magnetic Declanation Map (first)
- Magnitude
- Maltitudes
- Mantissa
- Matrix
- Mars
- Mathbooks, Early American
- Mathematics
- Mathot's Point
- Maximum
- Mean
- Mean Proportional
- Measure
- Medial Triangle
- Median (Origin & statistics)
- Medians of a Triangle
- Menelaus' Thm
- Mercator Projection, MAP
- Mercury
- Merels, the game
- Merhkat
- Meter
- Metric Ton
- Mil or Mill (1/1000)
- Mile
- Million
- Minor
- Minuend
- Minus
- Minute
- Miquel's Point & Theorem
- Miquel's Pentagon Theorem
- Mobius Strip
- Mode
- Modulus
- Mollweide Equations
- Monge's Theorem on common tangents of circles
- Monge's Point
- Monomial
- Monte Carlo Method
- Months and their Names
- Morley's Theorem
- Morris, (Nine Men's-) the game
- Moscow Papyrus
- Mu,
, for the average
- Multiple Factorial
- multiplicand
- Multiplication (Ancient/Old methods)
- multiplier
- multiply
- Myriad