Recent content by ynotidas

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    Undergrad How do i show that a markov chain is irreducible?

    how do i show that a markov chain is irreducible?
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    How to Solve a Nonlinear ODE using Variable Changes

    actually the answer is d(theta)/dr = 1, if any of you were wondering. needed to differentiate x and u in terms of r and theta with the product rule.
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    How to Solve a Nonlinear ODE using Variable Changes

    Homework Statement Solve the nonlinear ODE du/dx=(u+x√(x^2+u^2 ))/(x-u√(x^2+u^2 )) by changing variables to x=rcos(theta), u=rsin(theta) and converting the equation to one for d(theta)/dr. The Attempt at a Solution Not sure if I'm going in the right direction. du/dx =...
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    Another sequence convergence proof

    What do you do after 1/(sqrt{n+1)+sqrt{n}) ??