 Bureau of Justice Statistics  U.S. Department of Justice
The BJS collects, analyzes, publishes, and disseminates information on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government. Key statistics by topic; list of publications, with abstracts, many of
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 Bureau of Labor Statistics  JoAnn L. Yu
The BLS collects information on the U.S. labor force, the economy, etc. Includes "The Economy at a Glance," press releases with relevant statistics, timeseries of various data, regional data, various publications, and information about jobs in the bureau.
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 Burning 1Hour Fuses in 45 Minutes (Math Chat)  Frank Morgan, MAA Online
You have two onehour fuses: lighting one end of a fuse will cause it to burn down to the other end in exactly one hour's time. You know nothing else about the fuses; in particular you don't know how long any segment of a fuse will burn, only that an
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 Burnt Toast Publishing  Bran McMillin
Burnt Toast Publishing offers the math puzzles for free use.
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 The Burr Puzzles Site  IBM
A Burr Puzzle consists of at least three rods intersecting each other at right angles. The most wellknown type is the six piece burr where three sets of two rods intersect each other. This site lets you explore six piece burrs by selecting from a list
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 Bus Boarding and the Theory of Knots  Roy Lisker
This article is a humorous application of basic Knot Theory to the situations encountered when people are trying to board a bus in a great hurry. Their trajectories create braided patterns whicha are 'analyzed' with the help of the theory of knots.
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 Buses on Quantum Schedules  Ivars Peterson (MathTrek)
Anyone who has waited for a bus in the city has probably casually observed that, after an inordinately long wait, two or three buses often come along at the same time. Mathematical models that simulate traffic flow confirm that bus bunching is a real
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 BusinessHigher Education Forum  BusinessHigher Education Forum
BHEF is an organization of Fortune 500 CEOs, prominent college and university presidents, and foundation leaders working to advance innovative solutions to education challenges in order to enhance U.S. competitiveness. BHEF addresses education issues
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 Business Mathematics  MAA Online
From the Mathematical Association of America's Basic Library List  a bibliography of articles (in print, not on the Web) on Business Mathematics: Basic Skills; Algebra and Finite Mathematics; Business Statistics; Business Calculus; Economics; Finance;
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 Business Statistics (BSAD 301)  L. H. Arjomand; School of Business, Clayton College & University
An online credit course (Georgia system) with lecture notes, Powerpoint slides, sample exam questions, course syllabus, projects, solutions to problems, mailing lists, statistics links, magazines/newspapers, library, FAQs, and a bulletin board. Lecture
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 Busyness Girl Mathematics  Maria H. Andersen, Muskegon Community College
Posts on this blog about technology for math courses have discussed WolframAlpha and other websites for online instruction as well as for classroom use.
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 ButlerCooley Excellence in Teaching Awards  Turnaround Management Association (TMA)
This program, made possible through the John William Butler Foundation, honors elementary and secondary grade teachers who have demonstrated exceptional dedication and skill in shaping the lives of students and the communities in which they live. It awards
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 Butterfly Station  Manfred Ullman
Applets for exploring spirographs, pendula, the Mandelbrot set, and Lorenz attractors.
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 The Butterfly Theorem  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
Ten proofs (and a few variations) of the beautiful Butterfly theorem, with illustrations and remarks. Links to some generalizations: A Better Butterfly theorem, 2NWinged Butterfly theorem, several pages on the Two Butterflies theorem. Several of these
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 The Butterfly Website Picture Galleries  Mikula Web Solutions, Inc.
Symmetry in nature: butterfly and moth images from a variety of sources. In most cases, a small picture is included for speed of transmission, and a larger picture is available by clicking on the small picture.
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 Bytes of Science: An Internet Magazine  David S. Mazel, Ed.
An Internet magazine on science and engineering, with tutorials and introductory articles on various areas of science, math, or engineering. Articles include: A Basis for Functions: The Fourier Series; The Fourier Transform: The Frequency in a Waveform;
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 Byte Works, Inc.
Developers of the apps iPhone Calculator, a scientific/logic/conversion calculator; and techBASIC, which takes advantage of the iPod's, iPhone's, and iPad's builtin accelerometers, gyroscopes, or magnetometers to collect information, process it with
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 By the Numbers  Kinder Magic Software
Practice basic consumer math skills with Java applets that pace you though arithmetic problems, step by step: addition or subtraction of whole numbers or of decimals, percent markup, multiplication by one and twodigit numbers, multiplying decimals,
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 Byzantine Basketball  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A problem (with solution) sent by Prof. W. McWorter's: Byzantine Basketball is like regular basketball except that foul shots are worth a points instead of two points and field shots are worth b points instead of three points. Moreover, in Byzantine Basketball
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 C26: Geometry  Scott Thatcher; Dept. of Mathematics, Northwestern Univ., Evanston, IL
Syllabus for a Geometry course, with some solutions to problems in PDF format; Maple worksheets (version 4) for multivariable calculus.
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 CAARMS, The Council for African and Americans in the Mathematical Sciences  Mathematics Dept., SUNY Buffalo
An organization that highlights current research by AfricanAmerican researchers and graduate students in mathematics, strengthens the mathematical sciences by encouraging increased participation of AfricanAmericans and members of other underrepresented
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 Cable's Leaders in Learning Awards
Cable's Leaders in Learning Awards recognizes outstanding educators, administrators, policymakers, and other community leaders at the forefront of innovation in education. Award categories include: Cable Partnerships for Learning, Pushing the Envelope
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 Cabri Conic Macros  Jim King, University of Washington
Nine Cabri Geometry II macros for constructing conics from various givens and for constructing certain features of given conics. Contains a documentation file.
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 Cabri Geometry: Classroom Resources  The Math Forum
The Math Forum's page of links at the Forum and on the Web to dynamic interactive geometry classroom resources for Cabri Geometry. Books and Web sites; Frequently Asked Questions; exploring the basics; workshops; excerpts from the journal abraCAdaBRI;
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 Cabrigéomètre  JeanMarie Laborde
The French site for Cabri Geometry, the geometry software program. The site includes a brief history of the program, a list of new things on the site (see also CabriJava), Cabri product information, book and website references, and contact information.
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 Cabri Java Applets  Jenchung Chuan
Well over one hundred applets based on Cabri drawings.
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 Cabri Java Project/Projet CabriJava
CabriJava allows you to create dynamic geometric figures using Cabri and publish them as Java applets. In English and French.
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 Cabri Jr.  Texas Instruments Incorporated
Interactive geometry for the calculator: construct, analyze, and transform mathematical models and geometric diagrams. Cabri Jr. imports and exports figures from Windows computers. Take a tutorial, preview and download weekly activities, or browse the
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 CA Classical Analysis (Front for the Mathematics ArXiv)  Univ. of California, Davis
Classical Analysis preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
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 CADalog.com
An AutoCAD CAD Shareware Clearinghouse, offering a collection of over 4,000 shareware programs for CAD engineers, designers, graphics people, etc. Also a very large free 2d and a minimalcost 3d parts library with hardtofind parts.
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 CAD/CAM Developer's Kit C Function Libraries  John Keklak
The CAD/CAM Developer's Kits support very fast and reliable algorithms for
boundary offset, area fill, pocketing and area booleans. The offset
algorithm is an alternative to the Voronoi approach, and in many real world
cases is much faster and reliable.
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 CADCOM: Committee for the Advancement of Discrete and Combinatorial Mathematics  Chris Rodger, Auburn University, USA (Chair)
An international committee formed by the Institute for Combinatorics and its Applications (ICA) to present Combinatorics and Discrete Mathematics in its best light to all interested people and agencies, including university administrations, industry,
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 calc_reform  eMATH/AMS, Math Forum
A discussion around reform of the curriculum and the teaching of calculus and linear algebra, including differential equations, a mix of theoretical issues and concrete practices. Read and search archived messages; and register to post to the discussions.
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 Calc 360  Numerant, LLC
Calc 360 is a free, simple, and powerful calculator for your PC. Some of its main features include: adjustable precision, calculation history window, custom variables, loading and saving of calculations and more...
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 Calc 3D
Calculators for Windows 95/98/NT/XP designed to handle vectors, matrices, complex numbers, quaternions and coordinates. For point, line, plane, sphere, circle Calc 3D calculates distances, intersections, and some additional
information like volume and
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 Calc3D  Andreas Greuer
Calc 3D is a free program for calculating 3dimensional vectors, matrices and
complex numbers with Windows 95/98/NT. Cartesian coordinates, spherical coordinates und cylindrical coordinates can be transformed into each other.
Distances, intersections,
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 Calcgate  Brette de la Houssaye, Eugene Kellogg, and Robert K. Tarquinio
A Matlab toolbox that calculates work, energy, and integral area from input of polynominal or Fourier series.
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 Calchemy Live!  Calchemy Software Inc.
Express the parameters of an equation in any convenient units of measure. Calchemy then checks the equation and parameters for dimensional consistency and makes all the necessary units conversions automatically. Categories include acceleration, angle,
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 Calcugator  Moscazul Software Llc
Licensed software that "... works like a calculator, a plotting engine, and a programming environment." Calcugator creates bar, pie, pareto and xy charts; 2D plots of functions as well as polar and parametric displays; and 3D plots of functions, contour
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 CalculateHours  Molly Parker
This online time card calculator calculates hours worked. Add the widget to your site by copying the code provided. Training sessions teach how to use Excel to add up hours, average hours, and convert decimal hours or military time into conventional hours.
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 Calculate the Distance Between Two Places  infoplease.com
How far is it from one place in the U.S. to another? As you type, this form automatically completes the names of populated places, schools, "locales," parks, islands, bars, lakes, reservoirs, bays, gaps, dams, glaciers, streams, wells, mines, bends, valleys,
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 CalculateWhat  Colin Fagras
Free online calculators. In addition to covering math topics such as algebra, geometry, and statistics, CalculateWhat crunches numbers on topics financial, scientific, and  under a category called "miscellaneous"  more whimsical and topical in nature.
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 Calculating Car Payments  Barbara Christopher
Lesson plan with the objectives of using a formula containing complex fractions and large exponents to calculate a monthly car payment, using the order of operations while putting such a formula into a scientific calculator, and seeing a very practical
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 Calculating Cones  Monika Schwarze and Bianca Gonterney
A complete lesson plan including all materials, emphasizing a challenging and motivating method for selfguided and cooperative learning.
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 Calculating the Volume of a Vase
 Web Feats Workshop II
Determine the volume of the vase pictured. The photograph shows the construction of the vase and that its height is 50 cm. Use the applet to find the coordinate values for the edge of the vase, and use the regression features of a graphing calculator
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 Calculation and the Chess Master  Ivars Peterson (MathLand)
In 1912, J. B. Shaw wrote in the Bulletin of the American Mathematical Society: "The game of chess has always fascinated mathematicians, and there is reason to suppose that the possession of great powers of playing that game is in many features very much
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 CalculationRankings  Youri Lieberton
Arithmetic problems to solve or number sequences to complete as a stopwatch counts down. Play the games to compare high scores against other speedy problem solvers; take the timed tests to see correct answers after submission.
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 Calculations and Formulas for Gemstones  Dendritics Incorporated
Calculate the carat weight or specific gravity of a gemstone or the value of precious metals in various currencies, or convert weights among grams, carats, pennyweights, and ounces.
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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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 Calculator Based Algebra (CBA)  Allen V. Robnett
A complete basic algebra course, including a review of arithmetic operations, in 93 TI83 programs. Programs and operating notes can be downloaded here at no charge. The course emphasizes motivation and mastery.
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