MATH WORDS,
AND SOME OTHER WORDS,
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    A
  1. Abacus
  2. Abscissa
  3. Absolute Value
  4. Abundant Numbers
  5. Accumulate
  6. Accurate
  7. Achilles and The Tortoise
  8. Achiral
  9. Acre
  10. Acute
  11. Ada, Computer Language
  12. Add
  13. Addend
  14. Adjacent
  15. Aeon
  16. Affine Geometry
  17. Agnesi's Witch curve
  18. Ahmes Papyrus
  19. Alabama Paradox - voting
  20. Alchemy
  21. Aleph-Null
  22. Algebra
  23. Algebraic Numbers
  24. Algorithm
  25. Aliquot Parts
  26. "All Models are Wrong" quote
  27. Altitude
  28. Altitude of triangle, Properties
  29. Amblygon
  30. Amicable Numbers or Pairs
  31. Amplitude
  32. Analemma
  33. Analogy
  34. Angle
  35. Angle Bisectors in a Triangle
  36. Angstrom (unit of length)
  37. Annual
  38. Annulus
  39. Annus Mirabilis - Newton's Miracle Year
  40. Anode - creation of the term
  41. Antares
  42. Antecedent
  43. Anti-Center
  44. Antiparallel
  45. Aphelion
  46. Apoapsis
  47. Apogee
  48. Apollonius Gasket
  49. Apollonius Point
  50. Apollonius Problem
  51. Apothem
  52. Apportionment
  53. Approval Voting
  54. Apse
  55. Apside
  56. Arbelos
  57. Arc
  58. Archimedes Square Dissection Puzzle
  59. Arc Sine or Sin-1
  60. Are
  61. Area
  62. Argand Diagrams
  63. Argument
  64. Arithmetic
  65. Arithmetical Frames; (old teaching devices)
  66. Arithmetic Books, Early American
  67. arithmetic Books, First North American
  68. Arms of a right triangle, blog about the development of the term
  69. Arrive
  70. Asses' Bridge
  71. Associative
  72. Astroid
  73. Astronaut
  74. Astronomical Unit / AU
  75. Asymptote
  76. Atlas
  77. Atom
  78. Aubel's Theorem
  79. Average
  80. Avoirdupois
  81. Axiom
  82. Axis

  83. B
  84. Babylonian Square Root Method
  85. Bacon, Francis; stained glass at Wren Library, Cambridge
  86. Bakhshali Manuscript
  87. Barometer
  88. Barrow, Isaac; stained glass at Trinity Chapel, Cambridge
  89. Barycenter
  90. Baryon
  91. Base
  92. Bayes' Theorem
  93. Beast, Number of (666)
  94. Bell Curve
  95. Bell's Numbers or Bell Numbers
  96. Benford's Law
  97. Bernoulli's Golden Theorem
  98. Bernoulli Numbers
  99. Bertrand's Postulate (a prime between n and 2n)
  100. The Big Bang
  101. bi-gon (two sided polygon?)
  102. Billion
  103. Bimedian of Quadrilateral
  104. Binary Numbers
  105. Binomial
  106. Binomial Coefficients
  107. Birthday Problem, notes on origin
  108. Bisect
  109. Bisectors (ANGLE) in a Triangle
  110. Blackboard, History of
  111. Additional notes on History of Blackboards and slates
  112. Bode's Law
  113. Bounds and Butts (land measure)
  114. Borda Voting
  115. Borrow (in Subtraction)
  116. Bottle Imp Paradox
  117. Bowditch Curves
  118. Box Plot
  119. Braces {} as Grouping Symbols
  120. Brachystochrone
  121. Brackets as Grouping Symbols
  122. "Bracket X", or Bracket Function
  123. Brahmagupta's Formula
  124. Brahmagupta's Identity on the sums of two squares
  125. Brahmagupta's Multiplication method
  126. Butts and Bounds (land measure)
  127. The Bride's Chair
  128. Bridge of Asses
  129. Brocard's Problem
  130. Bruns Constant
  131. Bureau

  132. C
  133. C, symbol for Radians
  134. Caduceus
  135. Calculate / Calculus
  136. Calendar
  137. Camera / Camera obscura
  138. Cardinal
  139. Cardinality
  140. Carat
  141. Cardioid
  142. Caret
  143. Carmichael Numbers
  144. Carnot's Theorem
  145. Carroll's Logic Diagrams (by Lewis Carroll)
  146. Carry (arithmetic)
  147. Casting out nines
  148. Casting out elevens
  149. Catalan Numbers
  150. Catenary
  151. Cathetus
  152. Cathode - creation of the term
  153. Cauchy distribution
  154. Ceiling Function,
  155. Census
  156. Center
  157. Centroid or Center of Gravity
  158. Century
  159. Ceres
  160. Cesaro-Stolz Theorem
  161. Ceva's Theorem
  162. Cevian
  163. Chain or Gunter's Chain
  164. Chain Reaction
  165. Chaos
  166. Check
  167. Check methods for arithmetic
  168. Chebyshev's theorem.(a prime between n and 2n)
  169. Chie-no-ita, Chinese puzzle
  170. Chilihedron
  171. Chinese Checkers
  172. Chinese Postman's Problem
  173. Chinese Square Root Method
  174. Chiral
  175. Chi Square
  176. Choose
  177. Chord
  178. Circle
  179. Circuit
  180. Circulate Numbers
  181. Circumcenter
  182. Circumcircle
  183. Circumference
  184. Circumscribe
  185. Cis Notation for Complex Numbers
  186. Class
  187. cloff, commercial discount
  188. Clue
  189. Coefficient
  190. Collatz's Problem
  191. Collinear
  192. Combinations
  193. Commandino's Theorem
  194. Commutative
  195. Compass
  196. Complementary
  197. Complete Graph
  198. Complete Oriented Graph
  199. Complex Fraction
  200. Complex Numbers
  201. Component
  202. Composite & Compound
  203. Compute
  204. Concurrent
  205. Concyclic
  206. Condorcet Voting
  207. Cone
  208. Confidence Interval
  209. Confounding Variables (statistics)
  210. Congruent
  211. Congruent Numbers
  212. Conic Section
  213. Conic Surface
  214. Conjecture
  215. Conjugate
  216. Conjugate Angles
  217. Consequent
  218. Constant
  219. Contact Triangle
  220. Continuous
  221. Converse
  222. Convex
  223. Coordinates
  224. Corollary
  225. Correct
  226. Correlation
  227. Correlation Coefficient
  228. Cosecant
  229. Cosine
  230. Cosines, Law of
  231. Cosine Circle (2nd Lemoine)
  232. Cosmic Rays
  233. Cosmos
  234. Coss and Cossists
  235. Cotangent
  236. Cotes, Roger; stained glass at Trinity Chapel, Cambridge
  237. Counting Boards
  238. Counting Numbers
  239. Crafoord Mathematical Prize
  240. Cramer's Rule
  241. Crescent
  242. Critical Points
  243. Cube
  244. Cube roots, by hand
  245. Cuisenaire rods
  246. Cumulative
  247. Curator
  248. Curtate Cycloid
  249. Cusp
  250. Cybernetics
  251. Cyclic Quadrangles (Quadrilateral)
  252. Cycloid
  253. Cylinder
  254. Cylindrical Projection, MAP

  255. D
  256. Dart, type of quadrilateral
  257. Data/Datum
  258. Dean
  259. Decade
  260. Des Cartes' Circle Thm
  261. Decimal Fractions
  262. Decimal Point & Decimal Comma
  263. Decimal Repeat Bar
  264. Decrease
  265. Degree
  266. Degrees, Why 360 in a circle?
  267. de Gua's Theorem.
  268. Deltoid
  269. Denominator
  270. Derangement
  271. Derivative
  272. Derive
  273. Determinant
  274. Deviation
  275. Devil's Curve
  276. Diagonal
  277. Diagram
  278. Diameter
  279. Diamond
  280. Dice / Die
  281. Dido's Problem
  282. Difference
  283. Difference symbol "~"
  284. Digit
  285. Digital Root
  286. Digon (two sided polygon?)
  287. Dimension
  288. Di-graph or Directed Graph
  289. Discount
  290. Discriminant
  291. Distance
  292. Divide
  293. Dividend
  294. Divide, Symbols for
  295. Divisor
  296. divisor function, sigmakn
  297. Dodecagon
  298. Dodecahedron
  299. Domain
  300. Dollar
  301. Dollar Symbol $
  302. Dot as symbol for multiplication
  303. Double Dummy
  304. Dozen
  305. Drawers of Dirichlet
  306. Droz-Farny Theorem
  307. Duplation and Mediation

  308. E
  309. e for 2.71828...
  310. East
  311. Edge
  312. Egyptian Multiplication
  313. Einstein's Biggest Blunder
  314. Electricity
  315. Electron
  316. Ellipse
  317. Ellipsis
  318. Ellipsoid
  319. Empty Set
  320. Enantiomorphic
  321. End of proof symbol,
  322. Early American Math Textbooks
  323. Eon
  324. Eocene
  325. Eohippus
  326. Equal
  327. = , Equal Symbol
  328. Equation
  329. Equiangular
  330. Equilateral
  331. Equivalent
  332. Ether
  333. Euclid's Algorithm at Cut-the-Knot
  334. Euler Circuits
  335. Euler Line
  336. Euler Path or Circuit
  337. Euler's Planer Graph Theorem (proof) V+F=E+2
  338. Excenter and Excircle
  339. Explementary
  340. Exponent
  341. Extrapolate

  342. F
  343. Factor & Factorial
  344. Factoring (as in "factoring a quadratic")
  345. Fagnano's Problem
  346. Fair division of Assets and Obligations, Discrete Math Notes
  347. February
  348. Fermat Point
  349. Fermat's Last Theorem
  350. Fermat's Little Theorem
  351. Feuerbach's Circle
  352. Fibonacci's Identity on the sums of two squares
  353. Fibonacci's Sequence
  354. Fields Medal
  355. The Fifteen Puzzle, a blog about that famous little sliding puzzle game that swept the world.... and a link to a FREE download to play.
  356. First
  357. Floor Function,
  358. Focus
  359. Folium
  360. Forest (planer graph)
  361. Formula
  362. Forty, (why there is no "U" in,)
  363. Four
  364. Fourth Proportional
  365. Fractal
  366. Fraction
  367. Fractional Exponents
  368. Fraction Bar
  369. Frequency
  370. Friday
  371. Friendly Numbers
  372. Frustum
  373. Function
  374. Fundamental Counting Theorem
  375. Furlong (length)

  376. G
  377. Galaxy
  378. Galley method of Division
  379. Gallon
  380. Gallows Function,
  381. Gamma Function
  382. President Garfield's Pythagorean Proof
  383. Gas
  384. Gaudi Magic Square
  385. Gauging
  386. Gelosie Multiplication
  387. Geoboard
  388. Geocenter
  389. Geometric Mean
  390. Geometry
  391. Geometry, Royal Road to?
  392. Gergonne Point / Triangle
  393. Gibbous (phases of moon)
  394. Gilbert, Unit of measure
  395. Girard's Thm
  396. Gnomen
  397. Googol
  398. Gougu Rule
  399. Grad - angle measurement
  400. Grade (of road, etc.)
  401. Graham's Number
  402. Gram, unit of weight(mass)
  403. Graph
  404. Graph Paper
  405. Graphic Solutions to Quadratic Equations
  406. Graph Theory
  407. Grave, early unit for Kilogram
  408. Greater Than Symbol
  409. Greatest Common Factor, Using Euclid's Algorthm at Cut-the-Knot
  410. Greatest Integer Function
  411. Grebe Point
  412. Gross
  413. Gunter's chain"
  414. Gunter's scale"

  415. H
  416. Half, 1/2
  417. Half-Period
  418. Halma, board game
  419. Halmos symbol,
  420. Hamilton's Apportionment Method
  421. Hamiltonian Circuits
  422. Hanoi, Tower of Puzzle
  423. Harmonic Mean
  424. Harmonic Sequence
  425. Hash symbol, #
  426. Haversine
  427. Hawthorne Effect
  428. Heap Paradox
  429. Hectare
  430. Height
  431. HemiSphere
  432. Hein, Piet
  433. The Helen of Geometers
  434. Helium
  435. Helix
  436. Hermetic Seal
  437. Heron's Formula or Hero's Formula
  438. Heronian Mean
  439. Heron's Problem
  440. Heteroscedastic
  441. Hex, the game
  442. Hexdecimal
  443. Hinge
  444. Hippocrates Lune
  445. Hippocratic Oath
  446. Histogram /Histograph
  447. History, Notes on Math teaching
  448. Hoehn's Thm
  449. Hollerith Cards
  450. Homoscedastic
  451. Hoppity, old Enlish board game
  452. Horizon / Horizontal
  453. Hornbooks
  454. Horsepower
  455. Hour
  456. Houses and Utilities Problem (proof)
  457. Hubble (Unit of distance)
  458. Hundred
  459. Hyperbola
  460. Hyperbole
  461. Hypercube
  462. Hypocycloid of Four Cusps
  463. Hypocycloid of Three Cusps
  464. Hypodermic
  465. Hypotenuse

  466. I
  467. i for square root of -1
  468. identity and symbol ≡
  469. Ides
  470. Idiot
  471. IFF symbol
  472. Imaginary Numbers
  473. Incenter and Incircle
  474. Increase
  475. Increment
  476. Index
  477. Induction, Inductive Proof
  478. Inequality Symbols
  479. Infinitesimul
  480. Infinity
  481. Infinity Symbol
  482. Imperial Gallon
  483. Inscribe
  484. Int Function
  485. Integer
  486. Interpolate
  487. Interval
  488. interquartile range
  489. Inverse Sine or Sin-1
  490. Inverse Square Law
  491. Iodine
  492. Ion - creation of the term
  493. IQR
  494. Irrational Numbers
  495. Iridium
  496. Iris
  497. Ishango Bone
  498. Isogon - Isogonic Lines, Points, Symmetry
  499. Isometry
  500. Isomorphic
  501. Isomorphic symbol,
  502. Isoperimetric
  503. Isopleure, Isopleuron
  504. Isosceles
  505. Italian Method of Division

  506. J
  507. January
  508. Japanese Tangram type puzzle
  509. Jefferson's Apportionment Method
  510. Jerk
  511. Johnson's Theorem
  512. Josephus Problems
  513. Julia Set

  514. K
  515. Kaprekar Numbers
  516. Karat
  517. Kilogram Mass and Force
  518. Klein Bottle
  519. Kissing Circles Theorem
  520. Kite
  521. Knot, (Unit of speed)
  522. Knots and Knot Theory
  523. Kurschak's Theorem
  524. Kurtosis

  525. L
  526. Lame's Numbers
  527. Lattice Multiplication
  528. latus rectum
  529. lb, Pound
  530. Law of Cosines
  531. Law of Large Numbers
  532. Law of Sines
  533. Law of Tangents
  534. League (measure of distance)
  535. Leg
  536. Lemma
  537. Lemniscate
  538. Lemoine Point / Circles
  539. Lens (intersection of two circles)
  540. Leptokurtic
  541. Less Than Symbol
  542. l'Hospital's Rule
  543. Liar's Paradox
  544. Lies, Damned Lies, and Statistics
  545. Lill Circle, A Graphic Solution to Quadratic Equations
  546. Limacon
  547. Limit
  548. Line
  549. Lissajous Figures
  550. ln for natural logarithm
  551. Loculus of Archimedes
  552. Locus
  553. Logarithm
  554. Log-line (instrument for nautical speed)
  555. Long Ton
  556. Lotka's Law
  557. Loxodrome
  558. Lozenge
  559. Lucas Sequence
  560. Ludolph's Number
  561. Lune
  562. Lune of Hippocrates
  563. Lune of Alhazen
  564. Lurking Variables (statistics)

  565. M
  566. "m" for Slope
  567. Macron
  568. Magic Squares
  569. Magnetic Declanation Map (first)
  570. Magnitude
  571. Maltitudes
  572. Mantissa
  573. Matrix
  574. Mars
  575. Mathbooks, Early American
  576. Mathematics
  577. Mathot's Point
  578. Maximum
  579. Mean
  580. Mean Proportional
  581. Measure
  582. Measuring Four Gallons using a Five and Three Gallon Jug, some history (Blog)
  583. Medial Triangle
  584. Median (Origin & statistics)
  585. Medians of a Triangle
  586. Menelaus' Thm
  587. Mercator Projection, MAP
  588. Mercury
  589. Merels, the game
  590. Merhkat
  591. Meter
  592. Metric Ton
  593. Micromort
  594. Mil or Mill (1/1000)
  595. Mile
  596. Million
  597. Minor
  598. Minuend
  599. Minus
  600. Minute
  601. Miquel's Point & Theorem
  602. Miquel's Pentagon Theorem
  603. Mobius Strip
  604. Mode
  605. Modulus
  606. Mollweide Equations
  607. Monge's Theorem on common tangents of circles
  608. Monge's Point
  609. Monomial
  610. Monte Carlo Method
  611. Months and their Names
  612. Morley's Theorem
  613. Morris, (Nine Men's-) the game
  614. Moscow Papyrus
  615. Mu, , for the average
  616. Multiple Factorial
  617. multiplicand
  618. Multiplication (Ancient/Old methods)
  619. multiplier
  620. multiply
  621. Myriad