Noriko is an aspiring reporter . After training, she was sent to one of the offices of the Asagake Times newspaper .. Noriko is eager to cover the most disturbing problems of world politics and economics in her reports, but will she have enough experience and knowledge for this? Her immediate supervisor, Seki-san, decided to teach her to analyze events in politics and economics using mathematics . Reading this book, you and Noriko will learn the basics of differential and integral calculus and understand that this knowledge will be useful not only for carrying out complex scientific calculations .. Some examples from real life , [CM [ such as probability of events, Supply and demand curves in the economy , environmental pollution and even the density of alcohol distribution in the glass , The author shows , that derivatives and integrals help to understand a wide variety of problems , It is in our life................................... In the course of training, you will learn: - what is a derivative and how to use it to determine the rate of change of a function ; how the derivative and integral are related ; how to integrate and differentiate complex functions ; what are partial derivatives, and how to use them to find integrals and derivatives of functions of several variables ; how Taylor series decomposition can replace a function that is difficult to analyze with a polynomial of power. The book will be useful to high school students, university students, as well as anyone who is interested in mathematics and wants learning to be easy and exciting.