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Sombra Shadow

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

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?

Peter

South Africa
Available
I can answer all algebra and geometry questions from any grade. I am nearly finished my teaching degree and need experience. Anyone interested in talking to me is welcome!

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.

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.

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.

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.

Recent Answers

2015-07-01 Trilateration question:

Perhaps I didn't say it right, so I'll use the example you gave ...    What I get from (4,8) r=5, (11,7) r=5, and (16,17) r=10 is ...    For the x, I get (4*25 + 11*25 + 16*100)/(25+25+100) = (100 + 275

2015-06-30 Trilateration Formula for more than 3 points:

MIchael,     Apparently, only the 1st page of my notes to you were attached in my latest answer. This is because All Experts requires only image formats to be attached (jpeg, png, etc) and the conversion

2015-06-28 Integral with residue theory:

Here's some calculations reading the first integral you asked about. Hopefully it will help you understand more about the technique.    I know the denominator was supposed to be squared, but I worked out

2015-06-28 Integral with residue theory:

Thanks for the response. When you say the denominator should be squared do you mean the original function should be    sin(2x)/[x^2+9]^2  ?    I can try and work with that. I'd still like to see what your

2015-06-27 Integral with residue theory:

David, I'm afraid I don't follow your approach. For doing a contour integral, I would have defined     sin(2x)/(x^2+9) = Im{phi(z)}     phi(z) = exp(i2x)/(z^2+9)    where z is complex,    and then defined

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