Electronic School Book (BSE) Mathematics for SMA / MA Class The 2013 BSE curriculum is a free book whose copyright is owned by the Ministry of Education and Culture (Kemendikbud) which can be distributed to the public for free. The material in the application is sourced from https://buku.kemdikbud.go.id. This application is not an application developed by the Ministry of Education and Culture. The application helps provide learning resources but does not represent the Ministry of Education and Culture. The features available in this application are: 1. Links between chapters and sub-chapters 2. Responsive display that can be enlarged. 3. Page Search. 4. Minimalist landscape display. 5. Zoom In and Zoom Out. The material discussed is based on high school mathematics material for Class X Semester 1 and Semester 2 of the 2013 Curriculum Chapter I Equations and Inequalities Linear Absolute Value 1 Variable Chapter II Systems of Linear Equations with 3 Variables Chapter III Function Chapter IV Trigonometry