http://www.algebra.com Website changes and updates affecting tutors and students en-us Copyright Algebra.Com 2009-11-08T06:39+00:00 webmaster@algebra.com webmaster@algebra.com Site Updates 1901-01-01T00:00+00:00 12 hourly http://www.algebra.com/my/ Now you can look at everything "yours", such as your questions, your solutions, your lessons, solvers, and messages, on one convenient dashboard called "My Algebra.Com". Please report all bugs to ichudov@algebra.com. http://www.algebra.com/algebra/homework/Graphs/plot_any_inequality.solver Now you can plot any inequality involving x and y, on a graph. Students would use the above inequality solver, and tutors could type something like "graph( 500, 500, -10, 10, -10, 10, 2x-y < 5) ". http://twitter.com/algebra_com Not to be out-twitted by others, Algebra.Com is now on Twitter. All new unsolved problems are posted to Twitter, so that math addicts who are also Twitter addicts, can help students solve problems and be notified with your favorite Twitter software. http://wiki.algebra.com/index.php/Dangerous_Al-Gebra_movement A public school teacher was arrested today at John F. Kennedy International Airport as he attempted to board a flight while in possession of a ruler, a protractor, a set square, a slide rule, and a calculator... http://mycroft.mozdev.org/download.html?name=algebra.com&sherlock=yes&opensearch=yes&submitform=Search Firefox users, install this simple browser extension, and type your equations right into the Firefox search bar. http://www.algebra.com/ Universal solver, due to its popularity, got its input box right on the home page. http://www.algebra.com/cgi-bin/embed-solution.mpl?show=1&solution=27840 Any solution now has a link "Place this solution on your website". If you click on it, you get ONE LINE of custom Javascript generated for you. Cut'n'paste it into your own website, and you will have that solution displayed nicely, with all the graphs, etc. http://wiki.algebra.com/index.php/Daily_problem_posting_limit Students are not allowed to submit more than 6 problems per day. They start getting warnings after the fourth problem. The limit is reset daily. http://www.algebra.com/cgi-bin/ticker.mpl?channel=rss Now you can watch what is happening on Algebra.Com in real time. New problems, solved problems, addes lessons, can be monitored by a scrolling ticker. No Java. http://wiki.algebra.com/index.php/Textbook_information Now I am asking students who submit questions, to identify their textbook, chapter, and the problem. I want to build a database of solved math problems, so that future students could take advantage of existing work of our tutors. http://wiki.algebra.com/index.php/Thank_you_messages_displayed_in_tutor_profiles Now thank you notes from students are OPTIONALLY displayed in tutor profiles. Both students and tutors control privacy. http://igor.chudov.com/algebra-solver.html You can embed my solvers into your site. Your readers stay on your site. You get very nice graphical solvers. It is free. http://www.algebra.com/tutors/your-answers.mpl?userid=ichudov Now you can browse through all your old solution by accessing them page by page. Solutions (except bogus ones) are never deleted, all your work is always preserved. http://www.algebra.com/tutors/lessons-by-tutor.mpl?tutor=nutshellmath We have dozens of new video lessons! Very easy to understand. http://wiki.algebra.com/index.php/Including_problems_into_lessons We have a mother lode of extremely well written solutions to common problems. Now tutors can create compilations of Frequently Asked Questions in any section, easy as 1-2-3! See link above. http://wiki.algebra.com/index.php/Formula_plotting-drawings Tutors can plot ellipses and arcs in their drawings. http://wiki.algebra.com/index.php/Supported_math_functions Many more math functions can be graphed: sin, cos, asin, acos, tg, ctg, atan, sqrt, abs. http://wiki.algebra.com/index.php/Quizzes I created a system where any tutor can create a custom quiz, based onthe existing library of solved problems. Students who want to take a quiz, are asked the same problems that are in our database, and can compare them with the actual answers given by tutors. http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers Works the same way as "linear" pluggable solver, only uses substitution method. Tutors can invoke it in their solutions instead of doing the hard work of solving a linear system. http://wiki.algebra.com/index.php/Tex Tutors can use TeX in addition to my formula plotting system. Just say something like *[tex x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}]. If you do not know TeX, you can use my regular formula plotting system. http://www.algebra.com/algebra/homework/expressions/Solvers.html Tutors can "invoke" new pluggable simplification and substitution solvers. Example: *[invoke explain_simplification "x^2-x+x-1=0"] solves equation, *[invoke substitution "x^2-2y", "x", 3, "y", 2] substitutes 3 for x and 2 for y. http://www.algebra.com/ There are now Pre-Algebra, Algebra I, Algebra II, Logic and Geometry sections, and a word problem section. Everything is much more logical and should be easier to navigate. http://dsl.algebra.com/tutors/all-lessons.mpl Now all lessons have an access count. So, if you submitted lessons, you can check how many times they were viewed. http://www.algebra.com/tutors/problem-by-id.mpl If you only have a problem number, you can look it up by problem id on that address. http://www.algebra.com/services/rendering/simplifier.mpl Universal simplifier simplifies, solves equations, and explains EVERYTHING that it does, in colors! I have not found a web simplifier that shows work, that does as much.