This section collects educational books and notes written for high-school and early-university mathematics. They were developed from practical teaching, family study, and preparation work, with emphasis on algebra, functions, problem solving, and the connection between mathematics, coding, and economics.
📘 PeterBro
A mathematics book combining algebra, geometry, trigonometry, powers, polynomials, rational expressions, radicals, sequences, and selected applications to coding and games. The goal is to make school mathematics more concrete, visual, and useful.
A continuation of PeterBro, focused on stronger algebraic problem solving: equations, word problems, trigonometry, progressions, logarithms, inequalities, combinatorics, and an introduction to calculus. The book is partly inspired by classical problem-solving traditions but adapted for modern students.
A structured collection of high-school mathematics notes and exercises on polynomial, rational, exponential, logarithmic, and trigonometric functions. It was designed as a practical support text for learning functions step by step.