This book provides economics students with a comprehensive foundation in mathematical analysis, focusing on key concepts necessary for advanced economic models and quantitative methods. Divided into five chapters, it covers essential topics: numerical series, numeric functions of two variables, double integrals, improper integrals, and differential equations. Each chapter is designed with exercises and practical applications relevant to economics, enabling students to build both theoretical understanding and applied skills. Through this approach, students gain a mathematical toolkit vital for advanced studies and future careers in economics.