Robert Israel
Reputation
158,645
100/100 score
 Mar17 answered problem or doubt regarding visualizing angles of spherical triangle Mar17 answered Can SAT instances be solved using cellular automata? Mar16 awarded numerical-methods Mar16 comment The average denominator of the continued fraction expansion of $\pi$. I'm suspicious of how you obtained your plot. To get the millionth term in the continued fraction, you'll need an awfully good approximation for $\pi$. Mar16 comment Integral of $f^2$ exists, but integral of $f$ doesn't. "Exists" in what sense? Are you talking about Riemann integrals, improper Riemann integrals, or Lebesgue integrals? Mar16 answered How do I prove $\frac{n}{\sqrt[n]{n!}}$ is either monotonic and bounded, or Cauchy? Mar15 comment Runge-Kutta 4 - solving system of 6 differential equations (BVP) Since you mentioned Maple, you might note that Maple's dsolve includes solvers for boundary value problems. Unless there's some particular reason you have to use RK4, you're probably better off giving the problem to Maple as a boundary value problem. Mar15 revised Approximate probability that $20$ out of $100$ will last less than time $(x)$ added 289 characters in body Mar15 answered Approximate probability that $20$ out of $100$ will last less than time $(x)$ Mar15 awarded Nice Answer Mar15 answered $(X_n)$ an irreducible transient Markov chain. Is $f(x) = \mathbb{P}(X_n = x_0 \text{ for some } n > 0 | X_0=x)$ constant? Mar15 revised decimal expansion and square roots added 316 characters in body Mar15 answered decimal expansion and square roots Mar15 comment Converting Prime Numbers from Base $10$ to Base $4$ See OEIS sequence A065722, oeis.org/A065722 Mar15 awarded Nice Answer Mar15 answered Enlightening proof that the algebraic numbers form a field Mar15 answered Do people ever study non-commutative fields? Mar15 comment Analytic solution to explicit midpoint rule applied to an ODE The differential equation is supposed to be $y' = f(t,y)$, right? Mar15 answered Analytic solution to explicit midpoint rule applied to an ODE Mar15 comment Solutions to two Bézout equations solve a third one Now you're jumping to conclusions with $d=-a$ and $c=-b$: should be $d=q-a$ and $c=p-b$.