IB DP Maths: AI HL复习笔记3.7.1 Introduction to Vectors
Scalars & Vectors What are scalars? Scalars are quantities without direction They have only a size (magnitude) For example: speed, distance, time, mass Most scalar quantities can never be negat...
IB DP Maths: AI HL复习笔记3.6.2 Determinant of a Transformation Matrix
Determinant of a Transformation Matrix What is a determinant? the determinant is det A = ad - bc What does the determinant of a transformation matrix (A) represent? The absolute value of the determ...
申请美国大学雅思成绩要求是怎么样的？
申请美国大学雅思成绩要求是怎么样的？美国大学的申请季分为春季和秋季。如果你是春季入学的学生，那么8-10月将是你申请最为紧张的阶段；而秋季入学的学生需要在10月-次年3或4月完成申请工作。 在语言方面， 超过...
IB DP Maths: AI HL复习笔记3.6.1 Matrix Transformations
Transformation by a Matrix What is a transformation matrix? A transformation matrix is used to determine the coordinates of an image from the transformation of an object Commonly used transformatio...
IB DP Maths: AI HL复习笔记3.5.2 Toxic Waste Dump Problem
Toxic Waste Dump Problem What is the toxic waste dump problem? The toxic waste dump problem is the name given to the general idea of finding the point on a Voronoi diagram which is furthest from an...
IB DP Maths: AI HL复习笔记3.5.1 Voronoi Diagrams
Drawing Voronoi Diagrams What are Voronoi Diagrams? A Voronoi diagram shows the region containing the set of all points which are closer to one given site than to any other site on the diagram A si...
IB DP Maths: AI HL复习笔记3.4.3 Solving Trigonometric Equations
Graphs of Trigonometric Functions What are the graphs of trigonometric functions? The trigonometric functions sin, cos and tan all have special periodic graphs You’ll need to know their properties ...
亚洲留学成为中国家庭的大热门！
说到留学，很多同学的第一反应可能是英澳美加等传统留学目的地。不过一场席卷全球的疫情过后，亚洲留学成为中国家庭的大热门！ 前段时间，《2022中国留学白皮书》发布，数据显示，新加坡、日韩、中国香港等亚洲求...
IB DP Maths: AI HL复习笔记3.4.2 Simple Identities
Simple Identities What is a trigonometric identity? They are used to help simplify trigonometric equations before solving them Sometimes you may see identities written with the symbol ≡ This means ...
