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Ahmed Salami

I can provide good answers to questions dealing in almost all of mathematics especially from A`Level downwards. I believe i would be very helpful in calculus and can as well help a good deal in Physics with most emphasis directed towards mechanics.

Paul Klarreich

All topics in first-year calculus including infinite series, max-min and related rate problems. Also trigonometry and complex numbers, theory of equations, exponential and logarithmic functions. I can also try (but not guarantee) to answer questions on Analysis -- sequences, limits, continuity.


Any kind of calculus question you want. I also have answered some questions in Physics (mass, momentum, falling bodies), Chemistry (charge, reactions, symbols, molecules), and Biology (reproduction, insusion of chemicals into bloodstream).

Frederick Koh

I can answer questions concerning calculus, complex numbers, vectors, statistics , algebra and trigonometry for the O level, A level and 1st/2nd year college math/engineering student.


On Vacation
returns 10/24/2016
I can answer questions from the standard four semester Calculus sequence. I am not prepared for questions on Tensor Calculus. Everything else is welcome. Derivatives, partial derivatives, ordinary differential equations, single and multiple integrals, change of variable, vector integration (Green`s Theorem, Stokes, and Gauss) and applications.

Recent Answers

2016-09-17 Velocity and Acceleration:

Questioner:Frances   Country:Hamilton, Bermuda   Category:Calculus   Private:No   Subject:  Mathematics- Differentiation     Question:  A particle moves in a straight line. It's displacement 's' metres

2016-07-30 Frog crossing a bridge:

Hello Woody,    Yes, it is a familiar problem (or ones like it).    Theoretically, the frog never reaches the end of the bridge...since there will always be  some distance (however small) that remains

2016-07-20 Compute exponentiation of two complex numbers.:

Let z1 = x1 + i y1    Let z2 = x2 + i y2    If  z =  z1^z2, then    ln(z) = z2 ln(z1)    Now ln(z1) =  ln|z1| + i arg z1    and you can multiply this out with  z2,    then use the fact that    exp(z) =

2016-07-20 Compute exponentiation of two complex numbers.:

Yes, check these links:

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