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Clyde Oliver

U.S.
Available
I can answer all questions up to, and including, graduate level mathematics. I am more likely to prefer questions beyond the level of calculus. I can answer any questions, from basic elementary number theory like how to prove the first three digits of powers of 2 repeat (they do, with period 100, starting at 8), all the way to advanced mathematics like proving Egorov's theorem or finding phase transitions in random networks.

randy patton

U.S.
Available
college mathematics, applied math, advanced calculus, complex analysis, linear and abstract algebra, probability theory, signal processing, undergraduate physics, physical oceanography

Ahmed Salami

Nigeria
Available
I can provide good answers to questions dealing in almost all of mathematics especially from A`Level downwards. I can as well help a good deal in Physics with most emphasis directed towards mechanics.

Sombra Shadow

U.S.
Available
I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.

Socrates

Available
I can answer any questions from the standard four semester Calulus sequence. Derivatives, partial derivatives, chain rule, single and multiple integrals, change of variable, sequences and series, vector integration (Green`s Theorem, Stokes, and Gauss) and applications. Pre-Calculus, Linear Algebra and Finite Math questions are also welcome.

Scott A Wilson

U.S.
Available
I can answer any question in general math, arithetic, discret math, algebra, box problems, geometry, filling a tank with water, trigonometry, pre-calculus, linear algebra, complex mathematics, probability, statistics, and most of anything else that relates to math. I can also say that I broke 5 minutes for a mile, which is over 12 mph, but is that relevant?

Janet Yang

U.S.
Available
I can answer questions in Algebra, Basic Math, Calculus, Differential Equations, Geometry, Number Theory, and Word Problems. I would not feel comfortable answering questions in Probability and Statistics or Topology because I have not studied these in depth.

Paul Klarreich

Available
I can answer questions in basic to advanced algebra (theory of equations, complex numbers), precalculus (functions, graphs, exponential, logarithmic, and trigonometric functions and identities), basic probability, and finite mathematics, including mathematical induction. I can also try (but not guarantee) to answer questions on Abstract Algebra -- groups, rings, etc. and Analysis -- sequences, limits, continuity. I won't understand specialized engineering or business jargon.

Recent Answers

2016-04-19 Relations( concerning sets):

Hi AB,    The modulus of a complex number z = a + bi is given by the positive value of  |z| = √(a + b)    So, for x = 2 + 3i  |x| = √(2 + 3) = √13  which is not the same as 13, and

2016-04-18 Advanced Probability:

This looks like a homework problem, but I'll help anyway.    The expected value, E(X), is obtained by summing all the values of X and dividing by the total number, N. Adding the same constant value to

2016-04-18 Advanced Probability:

Ricardo,    Another HW problem (?!). The marginal distribution for x is obtained by summing p(x,y) over y for each value of x. In the table below, I used Excel to do the summing. The rightmost column is

2016-04-18 Advanced Probability:

Hi Ricardo,    Normally I don't like to answer homework problems but let me help you out a little here (in the future, please at least show some of your work in attempting to solve the problem or at least

2016-04-12 Number of Revolutions- Solution/Explanation:

The solution shows only the end result, after converting unit. It doesn't show the previous steps in which conversion factors are applied and units canceled out. I think would be clearer if the conversion

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