The Справочник по математике or Math Handbook is a comprehensive tool for Android users who want to learn and refresh their knowledge in various math disciplines. This free app is developed by caHek2x and falls under the Education & Reference category. The app covers a wide range of topics such as elementary and 3D geometry, geometric transformations, algebraic and trigonometric formulas, real numbers, numerical sets, and functions. It also includes equations and inequalities that cover linear, quadratic, exponential, logarithmic, and trigonometric equations. Other topics include analytic geometry, higher algebra, differential calculus, differential geometry, integral calculus, complex analysis, field theory, tensor calculus, differential equations, mathematical logic, and theory of probability and mathematical statistics.

The app is organized in a user-friendly manner, making it easy to navigate and access the various topics. It also includes a search function for quick access to specific topics. The Math Handbook is an excellent tool for students and math enthusiasts who want to learn and refresh their knowledge in various math disciplines.