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 Jan 10 comment Expected gain in game. Thank you. For a Markov process we need $X_{n+1}$ to depend only on $X_n,$ but here except of probabilities for wins/losses we have some amount of money from our previous tries out there. Jan 10 revised Expected gain in game. deleted 134 characters in body Jan 9 asked Expected gain in game. Aug 20 comment Is $1-\sin(x)$ a contraction mapping? And is there a sufficient/necessary condition for a real-valued function to be a contraction? sorry, you haven't answered if $1-sin x$ is a contraction mapping. Aug 19 comment Explanation and Proof of the fourth order Runge-Kutta method Why do you writing $\alpha, \beta$ here $K_{2} := hf(t+\alpha h,x(t) + \beta K_{1}).$ If we expand $x(t+v_2h)$ with Taylor series we get that $\alpha = \beta = v_2.$ I mean, why do you use different letters for the same quantity. Aug 6 answered Creating a Tridiagonal matrix in matlab Aug 5 comment Why truncation error diverges if step is too small for $(x+1)^3(x-2)^2?$ @MichaelGaluza mathworks.com/help/fixedpoint/ref/end.html Aug 5 comment Why truncation error diverges if step is too small for $(x+1)^3(x-2)^2?$ @MichaelGaluza Last index of array Aug 5 revised Why truncation error diverges if step is too small for $(x+1)^3(x-2)^2?$ added 861 characters in body Aug 5 asked Why truncation error diverges if step is too small for $(x+1)^3(x-2)^2?$ Aug 5 awarded Yearling Aug 5 accepted what step should i choose to get needed precision in trapezoidal method Aug 5 comment what step should i choose to get needed precision in trapezoidal method @AndréNicolas you can form it as an answer and i will accept it. Aug 4 revised what step should i choose to get needed precision in trapezoidal method added 29 characters in body Aug 4 asked what step should i choose to get needed precision in trapezoidal method Jul 23 answered Parabola equation in Fortune algorithm for building Voronoi diagram Jul 23 comment Shear transformation and relation above/below in TrapezoidalMap @JessicaK , just to make image more demonstrative. Jump can happen even with small $\epsilon.$ Jul 23 comment Shear transformation and relation above/below in TrapezoidalMap @NaN question added. Jul 23 revised Shear transformation and relation above/below in TrapezoidalMap added 250 characters in body Jul 23 revised Parabola equation in Fortune algorithm for building Voronoi diagram added 177 characters in body