Publisher of books and software in mathematics and computer science
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Registered paid members can choose among the three levels of courses:
 I The first level course includes: Fee -  Beginning algebra -  Intermediate algebra -  College algebra and related parts of mathematics as, -  Geometry and use of trigonometry -  Trigonometry, Trigonometric functions and equations -  Analytic geometry - Conic sections -  Vectors in 2D and 3D -  Combinatorial analysis and Probability with an extensive collection of -  Solved problems from Elementary to High school level  (930 + problems) 27/month II The second level course includes: Fee -  Beginning algebra -  Intermediate algebra -  College algebra -  Pre calculus I -  Pre calculus II -  Pre calculus III and related parts of mathematics as, -  Geometry and use of trigonometry -  Trigonometry, Trigonometric functions and equations -  Analytic geometry - Conic sections -  Combinatorial analysis and Probability -  Vectors in 2D and 3D -  Coordinate geometry - Points, lines and planes represented by vectors -  Matrices, determinants and Systems of linear equations -  Sequences and Series, Differential calculus with an extensive collection of -  Solved problems from Elementary to High school level  (930 + problems) 37/month III The third level course includes all: Fee -  Beginning algebra -  Intermediate algebra -  College algebra -  Pre calculus I -  Pre calculus II -  Pre calculus III -  Calculus I -  Calculus II -  Calculus III and related parts of mathematics as, -  Geometry and use of trigonometry -  Trigonometry, Trigonometric functions and equations -  Analytic geometry - Conic sections -  Combinatorial analysis and Probability -  Vectors in 2D and 3D -  Coordinate geometry - Points, lines and planes represented by vectors -  Matrices, determinants and Systems of linear equations -  Functions, Differential calculus and Integral calculus with an extensive collection of -  Solved problems from Elementary to High school level  (930 + problems) -  Solved problems from High school to University level  (750 + problems) 47/month

The home page of the website of each of the three levels also brings clear concise exploration of the theory about the polynomial titled  ' A revealing insight into the polynomial function '.
During the membership registered users can interactively (online) search and learn by navigating through entire contents of the chosen level presented on the home page of the website, 24 hours a day.
Note, a recurring membership service is one that automatically bills the customer every 30 days, until the customer cancels their membership. Members can cancel their subscription anytime simply by clicking the subscription cancel link in the member's area .
Also note that 30 days is the minimal and the fixed subscription duration interval or cycle. Meaning, a cancelled subscription continues to be active until the duration interval of 30 days elapses except when a refund is requested and therefore membership stops immediately.
New!
We encourage potential students to register as free members of the third level course for 10 days period and search through entire contents and decide if it suits their needs.
Thus, to register as free member for 10 days period, please
-  click the register button of the third level course,
-  and click Continue button.
At the User Agreement form check I Agree and click Continue button.
Next, please close the 2CO Payment page without entering any data (click X at the top of the page) and thats it.
In the 24 hours period we will approve your free access by sending you the confirmation email.

That is, for every two successive months of paid membership (of any of the three levels) we will award you with the third month membership free of charge.
Furthermore, those students (active members) will also get my personal support helping them succeed reach their goal guaranteed. I wish you success.
To register for the chosen level course, please click the appropriate button:
 The first level course 27/month
 The second level course 37/month
 The third level course 47/month
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