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Explore math with desmos.com, a free online graphing calculator

Free math problem solver answers your basic math, algebra, trigonometry, and calculus homework questions with step-by-step explanations.

Our free calculator graphs up to 5 equations, finds intersections and lets you save picture of graph to your computer! Also: pan and zoom, table of values, translate graph, plot points, color code graphs and more.

QuickMath allows students to get instant solutions to all kinds of math problems, from algebra and equation solving right through to calculus and matrices.

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Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources als...

Online graphing and solving calculators for functions, equations, and inequalities; get complete function graphs showing asymptotes and discontinuities automatically, plus tutorial analysis for calculus, precalculus, and algebra; includes 1D, 2D, and...

The goal of this free online learning center is to help high school students prepare for comprehensive exams in English, math, global history, U.S. history, earth science, biology, chemistry, and physics.

Math lessons, tutoring, books, calculators and more. Finish your homework in no time with our free problem solvers and graphing tools. Extensive lesson library covering algebra, geometry, trig, and calculus. Get expert math help if you can

Free math lessons, formulas, calculators and homework help, in calculus, algebra, analytic geometry and linear algebra.

Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.