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<channel rdf:about="http://www.algebra.com">
<title>Algebra.Com Site Updates</title>
<link>http://www.algebra.com</link>
<description>Website changes and updates affecting tutors and students</description>
<dc:language>en-us</dc:language>
<dc:rights>Copyright Algebra.Com</dc:rights>
<dc:date>2008-05-09T12:58+00:00</dc:date>
<dc:publisher>webmaster@algebra.com</dc:publisher>
<dc:creator>webmaster@algebra.com</dc:creator>
<dc:subject>Site Updates</dc:subject>
<syn:updatePeriod>hourly</syn:updatePeriod>
<syn:updateFrequency>12</syn:updateFrequency>
<syn:updateBase>1901-01-01T00:00+00:00</syn:updateBase>
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  <rdf:li rdf:resource="http://www.algebra.com/tutors/your-answers.mpl?userid=ichudov" />
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<item rdf:about="http://mycroft.mozdev.org/download.html?name=algebra.com&amp;sherlock=yes&amp;opensearch=yes&amp;submitform=Search">
<title>Firefox users can use my solver from search bar</title>
<link>http://mycroft.mozdev.org/download.html?name=algebra.com&amp;sherlock=yes&amp;opensearch=yes&amp;submitform=Search</link>
<description>Firefox users, install this simple browser extension, and type your 
equations right into the Firefox search bar. 
</description>
</item>

<item rdf:about="http://www.algebra.com/">
<title>Universal Solver Box added to home page</title>
<link>http://www.algebra.com/</link>
<description>Universal solver, due to its popularity, got 
its input box right on the home page. 
</description>
</item>

<item rdf:about="http://www.algebra.com/cgi-bin/embed-solution.mpl?show=1&amp;solution=27840">
<title>Load Algebra.Com solutions to YOUR website!</title>
<link>http://www.algebra.com/cgi-bin/embed-solution.mpl?show=1&amp;solution=27840</link>
<description>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. 
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Daily_problem_posting_limit">
<title>Added a Daily Problem Posting Limit</title>
<link>http://wiki.algebra.com/index.php/Daily_problem_posting_limit</link>
<description>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.
</description>
</item>

<item rdf:about="http://www.algebra.com/cgi-bin/ticker.mpl?channel=rss">
<title>Added a Real Time News Ticker</title>
<link>http://www.algebra.com/cgi-bin/ticker.mpl?channel=rss</link>
<description>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. 
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Textbook_information">
<title>Students asked to identify their textbook</title>
<link>http://wiki.algebra.com/index.php/Textbook_information</link>
<description>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.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Thank_you_messages_displayed_in_tutor_profiles">
<title>Students comments in tutor profiles!</title>
<link>http://wiki.algebra.com/index.php/Thank_you_messages_displayed_in_tutor_profiles</link>
<description>Now thank you notes from students are OPTIONALLY displayed in tutor
profiles. Both students and tutors control privacy.
</description>
</item>

<item rdf:about="http://igor.chudov.com/algebra-solver.html">
<title>Put MY solvers on YOUR site!</title>
<link>http://igor.chudov.com/algebra-solver.html</link>
<description>You can embed my solvers into your site. Your readers stay on your site. 
You get very nice graphical solvers. It is free.
</description>
</item>

<item rdf:about="http://www.algebra.com/tutors/your-answers.mpl?userid=ichudov">
<title>Access to your old solutions</title>
<link>http://www.algebra.com/tutors/your-answers.mpl?userid=ichudov</link>
<description>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. 
</description>
</item>

<item rdf:about="http://www.algebra.com/tutors/lessons-by-tutor.mpl?tutor=nutshellmath">
<title>Video lessons</title>
<link>http://www.algebra.com/tutors/lessons-by-tutor.mpl?tutor=nutshellmath</link>
<description>We have dozens of new video lessons! Very easy to understand.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Including_problems_into_lessons">
<title>You can create FAQs from compilations of YOUR solutions</title>
<link>http://wiki.algebra.com/index.php/Including_problems_into_lessons</link>
<description>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.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Formula_plotting-drawings">
<title>You can draw ellipses and arcs</title>
<link>http://wiki.algebra.com/index.php/Formula_plotting-drawings</link>
<description>Tutors can plot ellipses and arcs in their drawings. 
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Supported_math_functions">
<title>More math functions can be graphed</title>
<link>http://wiki.algebra.com/index.php/Supported_math_functions</link>
<description>Many more math functions can be graphed: sin, cos, asin, acos, tg, ctg, atan, sqrt, abs.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Quizzes">
<title>Created a Quiz system (like lessons)</title>
<link>http://wiki.algebra.com/index.php/Quizzes</link>
<description>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.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers">
<title>Added LINEAR SUBSTITUTION pluggable solver</title>
<link>http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers</link>
<description>
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.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Tex">
<title>Tutors can also use TeX in their solutions</title>
<link>http://wiki.algebra.com/index.php/Tex</link>
<description>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.
</description>
</item>

<item rdf:about="http://www.algebra.com/algebra/homework/expressions/Solvers.html">
<title>Simplification and substitution solvers</title>
<link>http://www.algebra.com/algebra/homework/expressions/Solvers.html</link>
<description>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.
</description>
</item>

<item rdf:about="http://www.algebra.com/">
<title>Changed categories to more logical structure</title>
<link>http://www.algebra.com/</link>
<description>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.
</description>
</item>

<item rdf:about="http://dsl.algebra.com/tutors/all-lessons.mpl">
<title>Added access counters to lessons and solvers</title>
<link>http://dsl.algebra.com/tutors/all-lessons.mpl</link>
<description>Now all lessons have an access count. So, if you submitted 
lessons, you can check how many times they were viewed.
</description>
</item>

<item rdf:about="http://www.algebra.com/tutors/problem-by-id.mpl">
<title>Look up problems by id</title>
<link>http://www.algebra.com/tutors/problem-by-id.mpl</link>
<description>If you only have a problem number, you can look it up by problem id on
that address.
</description>
</item>

<item rdf:about="http://www.algebra.com/services/rendering/simplifier.mpl">
<title>Universal Simplifier and Solver!</title>
<link>http://www.algebra.com/services/rendering/simplifier.mpl</link>
<description>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.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Formula_plotting-special_symbols">
<title>plot systems of equations</title>
<link>http://wiki.algebra.com/index.php/Formula_plotting-special_symbols</link>
<description>Tutotrs can now draw systems of equation using proper math symbols used for such systems.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Formula_plotting-special_symbols">
<title>N-th degree root available</title>
<link>http://wiki.algebra.com/index.php/Formula_plotting-special_symbols</link>
<description>Tutors can now enter N-th degree roots by saying root( N, argument ). For example root( 3, x ) means cubic root of x.
</description>
</item>

<item rdf:about="http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers">
<title>"pluggable solvers" help tutors
</title>
<link>http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers</link>
<description>I added an ability of tutors to use my "pluggable" solvers
to automate boring tasks like solving linear systems and 
quadratic equations over and over again.
</description>
</item>

<item rdf:about="http://www.algebra.com/tutors/students/ask.mpl?action=ask_question&amp;topic=test">
<title>Added RULES for students asking questions</title>
<link>http://www.algebra.com/tutors/students/ask.mpl?action=ask_question&amp;topic=test</link>
<description>Big cleanup of the question submission system, students can also use formula notation and are warned about the RULES. Also cleaned display of +- sign.
</description>
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