Categories of forums

Prealgebra, algebra and advanced algebra. Equations and inequalities, systems, percents, identities, fractions, sequences and series, exponents, functions, logarithms.

Trigonometric functions: sine, cosine, tangent, cotangent. Trigonometric equations and inequalities, graphing, identities, reduction. Reverse functions.

Points, lines and angles. Plane figures (triangles, quadrilaterals, circles, polygons) and 3D figures (cones, cubes, cylinders, pyramids, prisms). Similarities.

Basic and more complex algebrabased probabilities. Combinatorics: factorials, permutations, combinations, trees of opportunities. Statistics.

Limits of functions, infinity, continuity, sequences, ordinary and partial derivatives, indefinite and definite integrals, advanced functions and their families. Vectors.

Advanced algebra, calculus, geometry, probability and statistics, analysis, differential equations, discrete and business mathematics, number theory.

Mathematical contests and olympiads for all grades. Section for more complex, logical tasks, problems and questions. Math marathon.

Physics, chemistry, biology, earth, astronomy, microbiology, anatomy, physiology and other nature sciences. Problems based on these sections

Literature, software, calculators, exams, useful resources, links, learning questions and other topics that are not relevant to other categories.

Project news, updates, important information and instructions, sggestions and comments, help for using website and bug fixes.