哥伦比亚大学：世界顶尖私立研究型大学之一！
不知道是纽约造就了哥伦比亚大学，还是哥伦比亚大学成就了纽约，哥伦比亚大学里的学生，很多思维意识领先于美国政坛，一直是美国自由派的重要堡垒，它不断向纽约输出新思想新文化，促进纽约市的开放与自由。开放...
IB DP Maths: AI HL复习笔记1.7.4 Solving Systems of Linear Equations with Matrices
Solving Systems of Linear Equations with Matrices Matrices are used in a huge variety of applications within engineering, computing and business. They are particularly useful for encrypting data an...
IB DP Maths: AI HL复习笔记1.7.3 Determinants & Inverses
Determinants What is a determinant? The determinant is a numerical value (positive or negative) calculated from the elements in a matrix and is used to find the inverse of a matrix You can only fin...
IB DP Maths: AI HL复习笔记1.7.2 Operations with Matrices
Matrix Addition & Subtraction Just as with ordinary numbers, matrices can be added together and subtracted from one another, provided that they meet certain conditions. How is addition and subt...
IB DP Maths: AI HL复习笔记1.7.1 Introduction to Matrices
Introduction to Matrices Matrices are a useful way to represent and manipulate data in order to model situations. The elements in a matrix can represent data, equations or systems and have many rea...
IB DP Maths: AI HL复习笔记1.6.3 Applications of Complex Numbers
Frequency & Phase of Trig Functions How are complex numbers and trig functions related? A sinusoidal function is of the form a sin(bx + c) a represents the amplitude b represents the period (al...
IB DP Maths: AI HL复习笔记1.6.2 Forms of Complex Numbers
Modulus-Argument (Polar) Form How do I write a complex number in modulus-argument (polar) form? How do I multiply complex numbers in modulus-argument (polar) form? The main benefit of writing compl...
去加拿大留学，寄宿家庭怎么找？
去加拿大留学，寄宿家庭怎么找？开学在即，来留学的孩子们很快陆续来到加拿大，孩子们在机场被接走之后往往直接送到寄宿家庭。小编总结出大家关心的关于寄宿家庭的一些问题并予以解答，希望父母和孩子们都对寄宿...
IB DP Maths: AI HL复习笔记1.6.1 Geometry of Complex Numbers
Geometry of Complex Addition & Subtraction What does addition look like on an Argand diagram? In Cartesian form two complex numbers are added by adding the real and imaginary parts When plotted...
