Characteristic Polynomials Eigenvalues and eigenvectors are properties of square matrices and are used in a lot of real-life applications including geometrical transformations and probability scena...
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...
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...
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...
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...
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...
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...
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？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...
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...
对于从AS升入A2、即将申请英本的同学来说，大家有一个很重要的任务，就是完成申请中personal statement—英本申请文书的写作。我相信这个阶段的大家都会有很多疑惑，对于这个在大学申请中和成绩同样重要的文书无从...
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...
