 19th Century Schoolbooks  University of Pittsburgh
Search the full text of dozens of antique books used to learn and practice arithmetic and other mathematical subjects in the schools of 1800's America. Browse scanned images (gif or PDF) of centuriesold pages, or search for text within primers, readers,
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 AlgebraLAB: Making Math and Science Connections  Mainland High School (Daytona Beach, FL), Georgia Southern University
Created by mathematics and science teachers, AlgebraLAB is designed to focus on topics and skills from high school mathematics that students must be able to draw upon in their introductory college science courses. AlgebraLAB focuses on lessons and practice
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 Area Under Curves: The Integral  Don Cohen (The Mathman)
Area on the geoboard; Plotting points on a computer or programmable calculator to find the area under curves; Finding the area under curves on graph paper. Sample problems with some answers and a program to plot points  from Chapter 13 of Don Cohen's
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 Basic Math Concepts and Fundamentals  R. H. Logan
A series of readings and practice problem activities designed to alleviate "math anxiety," for those planning to take a science course but uncertain about the math preparation. Includes lessons and practice problems. The topics covered are especially
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 Blackline Masters  Savetz Publishing, Inc.
Download free PDFs of black line masters for inch, polar, log, and semilog grids.
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 Brilliant
Weekly Olympiadstyle challenges that offer "rigorous, competitive, whimsical, and edifying" problem sets in math and physics. Register to explore the Brilliant Techniques Trainer's practice exercises; answer correctly to earn points redeemable for lanyards,
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 A Calculator
JavaScript calculators: the four basic operations, average, arithmetic congruence, greatest common divisor (GCD), least common multiple (LCM), radical simplifier, word converter that writes out numerals, and more.
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 Calculus (S.O.S. Mathematics)  Dept. of Mathematical Sciences, Univ. of Texas at El Paso
An online course: learning units presented in worksheet format review the most important results, techniques and formulas in college and precollege calculus. Logarithms and Exponential; Sequences; Series; Techniques of Integration; Local Behavior of
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 CAS Musings  Chris Harrow
Blog by a math teacher at a prep school in Ohio. Posts, which date back to March, 2011 and emphasize science, technology, engineering, and mathematics (STEM) and computer algebra systems (CAS), have included "Transforming inverse trig graphs"; "Birthday
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 ChiliMATH  Michael Estela
Lessons and tutorials with worked examples, some handwritten: equations, inequalities, radicals, matrices, polynomials, functions, and more.
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 ChiPrime
From the makers of the Android apps Grade School Math X and High School Math Challenge: autoscoring quizzes comparable to the quantitative section of the SATs, GREs, and GMATs; notes on logarithms, algebraic identities, exponents, quadratic equations,
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 Computation of Discrete Logarithms in Prime Fields  LaMacchia, Odlyzdo; AT&T Bell Laboratories, NJ
The presumed difficulty of computing discrete logarithms in finite fields is the basis of several popular public key cryptosystems. The secure identification option of the Sun Network File System, for example, uses discrete logarithms in a field GF(p)
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 Computing Before Computers  Brian Borchers, New Mexico Institute of Mining and Technology
Online introductions, with PostScript or PDF downloads, of Napier's Bones and of the GenailleLucas Rulers. Pictures of statistical computing devices such as the Pickett N525ES Statrule, the cumulative binomial probability computer, the General Dynamics
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 coolmath.com: Cool Math  Karen
A searchable "amusement park of mathematics" for exploring math: functions, tessellations, polyhedra, limits, logs, fractals (with galleries), puzzles and problems, fun with numbers, how to succeed in math, careers in math. Also Cool Links for Math for
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 Decimals and Logarithms in the Works? And a Dyer's Hand too?  Penn Leary
Shakespeare, Decimals and Logarithms: What did Shakespeare know about mathematics, particularly logarithms and the decimal system? And when did he know it? An article partly from Leary's book, The Second Cryptographic Shakespeare.
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 Early Calculators  David G. Hicks
Some history on slide rules and their types and makers, as well as basic instructions on their use. Also Planimeters, Calculating Machines (adding machines, four function mechanical calculators, how calculating machiens worked), and Early Electronic Models.
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 Exercises in Math Readiness for University (EMR)  Dept. of Mathematics and Statistics, University of Saskatchewan
A collection of exercises with solutions/tutorials for high school mathematics topics important for university study in mathematics, sciences, engineering and commerce. Exercises at three degrees of difficulty, covering graphing, solving inequalities,
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 Explaining Logarithms  Dan Umbarger
"Explaining Logarithms" is a free 109 page PDF which tries to explain the origin and use of logarithms in a different logical progression than exists in the traditional textbooks. Site includes philosophy behind the work, how to order multiple copies
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 ExploreMath.com  Third Millennium Press
Shockwave activities illustrating realtime correlations between equations and graphs to help students visualize and experiment with concepts from elementary algebra through precalculus: experiment with the graphs of functions, systems, and complex numbers.
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 Field Guide to Functions (Web Study Guide)  Oregon State University (OSU) Math Department
This field guide contains a quick look at the functions commonly encountered in single variable calculus, with exercises for each topic: linear, polynomial, power, rational, exponential, logarithmic, trigonometric, and piecewise functions. Also algebraic
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 First Digits  Ivars Peterson (MathTrek)
Take a look at a newspaper page listing stock market prices. You might think that each of the numbers from 1 to 9 would occur equally often among the first digits of all the listed prices. Instead, however, you're very likely to find that numbers starting
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 From Lewis Carroll to Archimedes  Cut the Knot!, Alexander Bogomolny
On March 29, 1879, Vanity Fair began offering its subscribers a new weekly puzzle invented by Lewis Carroll... on March 17, 1953 Frank Gray, a research scientist at Bell Labs, filed patent no. 2632058, for the Gray code encoding
the vacuum tube. An ndigit
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 fxsolver  Equanalysis UG
Free equation solver with a formula database for quick calculations on tables and data input "without messing around with programming languages or spreadsheet software." Browse the hundreds of math formulas, then click the gray "Add to Solver" button
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 Graphing Applet  Greg Vogl
This graphing Java applet illustrates variable substitution and function composition by encouraging the user to experiment with variables and look at a range of functions  logarithmic, trigonometric, exponential, and more. Parameters include xmin and
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 How a Slide Rule Works  Peter Fox
An explanation of how slide rules work, beginning with a rudimentary logarithm calculator and log tables, featuring a logarithmic scale to print out to make your own slide rule, and concluding with "tricks from the slide rule era."
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 How To: Algebra
Features explanations and step by step examples of algebra topics from the high school level to college algebra.
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 HyperMath  Carl R. (Rod) Nave; Georgia State University
HyperMath uses concept maps to explore mathematics ideas and applications to physics and astronomy. Originally developed in HyperCard, HyperMath covers the topics of algebra, trigonometry, geometry, vectors, linear algebra, logarithms, exponents, calculus,
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 IMSA Math Activities  Illinois Mathematics and Science Academy (IMSA)
A collection of short activity sheets on algebra, precalculus, and calculus subjects ranging from a definition of logs and derivatives of exponential functions, to reciprocals of power functions (x^n) and reciprocals of parabolas, to Newton's Method
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 Interactive Excel Spreadsheets  Scott A. Sinex, Prince George's Community College
"Excelets are interactive Excel spreadsheets or simulations of mathematical models. The user changes a variable and the spreadsheet changes in numerical, graphical, and/or even symbolic form (equations).... with no use of programming, no macros or Visual
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 Interactive Mathematics  Murray Bourne, Ngee Ann Polytechnic, Singapore
Flash Tutorials for PreCalculus (Algebra, Trigonometry, Logarithms, Complex Number Systems, Graphs); Calculus (Differentiation  The Derivative, its Applications, Deriving Transcendental Functions; Integration, its Applications and Methods), and Advanced
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 KryssTal: Mathematics  Kryss Katsiavriades and Talaat Qureshi
Essays with worked examples: numbers, algebra, Pascal's Triangle, trigonometry, logarithms, graphs, calculus (differentiation), and more.
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 Making of America Books  University of Michigan
This digital library of primary sources in American social history includes dozens of schoolbooks on arithmetic and other mathematical subjects that date to the antebellum period through reconstruction. Search or browse scanned graphics or transcribed
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 Mamikon  Mamikon Mnatsakanian
Thoughtprovoking Shockwave Flash animations of geometric constructions, graphs, games, and much more. Mnatsakanian's site http://www.mamikon.com/ links to dozens of the articles he has coauthored with Tom Apostol in journals such as American Mathematical
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 Math Calculators and Solvers Online  ACalculator
Online calculators for calculating or solving areas of rectangles, triangles, squares, circles, and more; volumes of rectangular prisms, pyramids, spheres, cylinders, conical frustrums, cones, capsules, and more; binary operations; fraction operations;
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 MathComplete  Beata Obrzut
Learn about probability distributions, quadratic equations, linear expressions, slope of a line, radical expressions, and sequences and series through tutorials, worked MathML examples, and "automatic solvers" that use Design Science's MathPlayer software.
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 MathEclipse  Axel Kramer
Evaluate math expressions symbolically or numerically. MathEclipse plots two and threedimensional functions; checks primality; recognizes constants; accepts integers, rational numbers, complex numbers, real numbers, complex real numbers, vectors, matrices,
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 Mathematical Mystery Tour  ThinkQuest 1996
A nolongeractive online contest; old competition problems; lessons (logarithms, probability, trigonometry); and an area to submit problems.
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 Mathematical Tables and Formulas (S.O.S. Mathematics)  Dept. of Mathematical Sciences, Univ. of Texas at El Paso
A place for students and educators to access mathematical formulas. The tables are organized by topics: The First 1000 Prime Numbers; The Prime Factorization of the First 1000 Integers; Math for the Toolbox  SAE to Metric Conversion; Some Important Constants;
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 Mathematics  John Savard
A collection of essays and illustrations: pentagonal tilings, infinity (Cantor's theory of transfinite numbers), rotations of the dodecahedron, Archimedean solids, the fourth dimension (regular polytopes), Gödel's proof and the halting problem, and
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 Math Exercises
Interactive exercises, lessons, and worksheets to practice knowledge of whole numbers, integers, divisibility, fractions, exponents and powers, percentages, proportional reasoning, linear equations, quadratic equations, monomials, polynomials, special
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 MathForAllGrades
Overviews, definitions, formulas, and worked examples, primarily in algebra.
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 Math Quiz
Hundreds of free tests suitable offering instant feedback to prepare students for GCSE and ALevel examinations. Register to see more than five questions per test and access your profile, which tracks your past assessments; purchase to see a full solution
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 Mathsational  Jennifer Abel
Blog by a math teacher at a suburban public high school in Lancaster, PA. Posts, which date back to June, 2015, have included "My first ever conference presentation & more on SBG"; "MTBoS Love — A Plethora of Activity Resources"; "Simplifying,
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 MathsDirect  MathsDirect
Free tutorials and exercises in the Alevel maths subjects of algebra, the binomial theorem, coordinate geometry, differentiation, functions, indices, integration, logarithms, numerical methods, probability, series, statistics, and trigonometry. Register
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 The Maths Igloo  Ian Lynagh
Contents: Pi (generating Pi and where you can get it on the 'net); Four plus five (it's nine, isn't it. Or is it?  binary, hexadecimal); All about logarithms; About the Mathematical symbol "e".
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 Mathtoons  Kristin Garn
An educational technology company that delivers engaging math lessons designed specifically for digital learners in the upper grades, such as Logarithms Lite iPad, a humorous discoverybased lesson that uses animation and wacky characters to help students
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 MegaCalculator  Don Benish, Benish Industries
From the MegaConverter site. A webbased scientific calculator with which you can add, subtract, multiply, divide, take square roots, do powers, logarithms, sin, cosine, tangent, statistical functions and more.
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 Musemath  Bob O'Rourke
Videos on the mathematics and physics of the Western Traditional Music Scale.
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 Now College  Online Math Courses and Tutorials  Now International
An online learning company. Products are designed with video instruction, "realtime" whiteboard handwriting, graphics, animations, graphs, tables, and math notation. A complete highschool math program is planned. Currently, courses in trigonometry
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 Order of Operations  Math Forum, Ask Dr. Math FAQ
What is the correct order of operations? Why use it? What is PEMDAS?
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