WGHS沃顿商赛是免费的吗？2022年WGHS开始报名了！
WGHS（Wharton Global High School Investment Competition），是一个全球范围的线上模拟投资交易大赛。WGHS沃顿商赛是免费的吗？2022年WGHS沃顿商赛开始报名了！ 宾夕法尼亚大学的沃顿商学院是全美排名第一的本...
IB DP Maths: AI HL复习笔记5.2.6 Concavity & Points of Inflection
Concavity of a Function What is concavity? Concavity is the way in which a curve (or surface) bends Mathematically, CONCAVE DOWN is often called concave CONCAVE UP is often called convex Exa...
IB DP Maths: AI HL复习笔记5.2.5 Further Applications of Differentiation
Stationary Points & Turning Points What is the difference between a stationary point and a turning point? A stationary point is a point at which the gradient function is equal to zero The tange...
2022澳大利亚AMC数学竞赛报名通道即将关闭！
澳大利亚数学学术活动Australian Mathematics Competition（简称AMC）；于1978年由著名数学家Peter O’Halloran创立的Australian Mathematics Trust（AMT）澳大利亚数学联合会全权主办；是AMT 每年为澳大利亚选拔...
IB DP Maths: AI HL复习笔记5.2.4 Second Order Derivatives
Second Order Derivatives What is the second order derivative of a function? If you differentiate the derivative of a function (i.e. differentiate the function a second time) you get the second orde...
IB DP Maths: AI HL复习笔记5.2.3 Related Rates of Change
Related Rates of Change What is meant by rates of change? A rate of change is a measure of how a quantity is changing with respect to another quantity Mathematically rates of change are derivatives...
IB DP Maths: AI HL复习笔记5.2.2 Techniques of Differentiation
Chain Rule What is the chain rule?How do I know when to use the chain rule? How do I use the chain rule? Are there any standard results for using chain rule? Exam Tip You should aim to be able to s...
IB DP Maths: AI HL复习笔记5.2.1 Differentiating Special Functions
Differentiating Trig Functions How do I differentiate sin, cos and tan?These last three results can be derived using the chain rule For calculus with trigonometric functions angles must be measured...
IB DP Maths: AI HL复习笔记5.1.3 Modelling with Differentiation
Modelling with Differentiation What can be modelled with differentiation? Recall that differentiation is about the rate of change of a function and provides a way of finding minimum and maximum val...
IB DP Maths: AI HL复习笔记5.1.2 Applications of Differentiation
Increasing & Decreasing Functions What are increasing and decreasing functions? How do I find where functions are increasing, decreasing or stationary? To identify the intervals on which a func...
IB DP Maths: AI HL复习笔记5.1.1 Introduction to Differentiation
Introduction to Derivatives Before introducing a derivative, an understanding of a limit is helpful What is a limit? What might I be asked about limits?What is a derivative? How are limits and deri...
IB DP Maths: AI HL复习笔记4.13.2 Transition Matrices
Transition Matrices What is a transition matrix? A transition matrix T shows the transition probabilities between the current state and the next state The columns represent the current states The r...
