哥倫比亞大學：世界頂尖私立研究型大學之一！
不知道是紐約造就了哥倫比亞大學，還是哥倫比亞大學成就了紐約，哥倫比亞大學里的學生，很多思維意識領先于美國政壇，一直是美國自由派的重要堡壘，它不斷向紐約輸出新思想新文化，促進紐約市的開放與自由。開放...
IB DP Maths: AI HL復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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...
去加拿大留學，寄宿家庭怎么找？
去加拿大留學，寄宿家庭怎么找？開學在即，來留學的孩子們很快陸續來到加拿大，孩子們在機場被接走之后往往直接送到寄宿家庭。小編總結出大家關心的關于寄宿家庭的一些問題并予以解答，希望父母和孩子們都對寄宿...
IB DP Maths: AI HL復習筆記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...
英國本科申請文書怎么寫？
對于從AS升入A2、即將申請英本的同學來說，大家有一個很重要的任務，就是完成申請中personal statement—英本申請文書的寫作。我相信這個階段的大家都會有很多疑惑，對于這個在大學申請中和成績同樣重要的文書無從...
IB DP Maths: AI HL復習筆記1.5.3 Introduction to Argand Diagrams
Argand Diagrams What is the complex plane? The complex plane, sometimes also known as the Argand plane, is a two-dimensional plane on which complex numbers can be represented geometrically It is si...
高含金量美國本土科研賽事盤點！
從疫情開始以來，美國大學的招生政策在不斷進行調整。盡管每年的錄取難度都在提升，但這并沒有阻擋學生們申請Top美本的熱情。據國際教育協會（IIE）最新報告也指出，美國留學生人數在2020年經歷了一個小低谷，而...
