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Expertise
All the conceptual questions, pure math & basic stats alike I am good at answering your algebra (including logarithm, functions, trigonometry) and geometry questions. I can also provide to you a firm understanding into basic calculus and other mathematical ideas and concepts. You can either ask questions in English or Chinese. Physics Qns that require rigorous math are also welcomed Important:Please avoid asking me questions related to economics.After all, I am only a secondary school student
Experience in the area
A lot of participation in Math Olympiad Competition with numerous awards (Not always gold, though) CMO Gold, SMO Silver, SPhO Gold
Education/Credentials
So far, nothing.
What do you like about this subject?
Exactness..No exceptions in its definition..Intricate but intriguing solutions to problems
What do you still hope to achieve/learn in this field?
Anything related to my future ambitions..
Something interesting about this subject that others may not know:
Eh..
Something controversial or provocative about this subject
Even math has assumptions
Average Ratings
Recent Reviews from Users
K = Knowledgeability C = Clarity of Response P = Politeness| User | Date | K | C | P | Comments |
|---|---|---|---|---|---|
| Donna | 02/24/11 | 10 | 10 | 10 | Thanks Chen, I went through all possibilites ..... |
| Kenneth | 02/22/11 | 10 | 10 | 10 | Thanks for the reply! |
| Kenneth | 02/16/11 | 10 | 10 | 10 | Thanks for your reply! |
| Oliver | 01/27/11 | 10 | 10 | 10 | Thanks so much Chen. This one was ..... |
| Oliver | 01/25/11 | 10 | 10 | 10 | Awesome! Thank you so much Chen - ..... |
Recent Answers from Chen Min
2011-03-15 Volume of a Cone:
Firstly, you get the arc length corresponding to the sector cut out: R(theta) It's the circumference of the cone's base: so 2(pi)r=R(theta), r = R(theta)/2(pi), where r is the radius of the cone's base
2011-02-17 Finding the Point of Diminishing Return:
I wonder who gave you this question. It is clearly not solvable to me. If you treat the two variables' relation as a function (shown as a curve in your axis), the PODR is at the point where dy/dx is
2011-02-16 Incomplete Calculation:
I don't quite understand your question. If either y or z is replaced by a number, then there will be only one unknown (variable), and the equation will be solvable, and most likely has a single unique
2011-02-16 Incomplete Calculation:
You gave me an equation with two unknowns, y and z. Generally, if the number of equations is less than the number of uncancellable unknowns involved, the set of equations do not have a unique solution
2011-01-27 Another Trig Question:
RHS=(sinx+cosx)(sinx-cosx)/cosx(sinx+cosx) =(sinx-cosx)/cosx =tanx - 1 This one is actually easy For more complicated ones, just use the following equations: Imagine a hexagon, with top
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