There are two volumes of secondary school mathematics. The New Textbook of National Secondary Vocational Education Planning: Mathematics (2 sets in total) is for three-year secondary vocational schools to try out. This book is divided into two volumes. The first volume includes seven chapters: number, shape, formula, set, function, exponential function, logarithmic function, power function, trigonometric function, sequence, permutation and combination; The second volume includes six chapters: simple logic, inequality, vector, straight line, conic curve and limit.