Logan Serman
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 Aug 1 awarded Notable Question Apr 16 awarded Nice Question Jul 2 awarded Curious Mar 10 awarded Popular Question May 11 awarded Popular Question Dec 10 awarded Popular Question Sep 19 awarded Yearling Aug 28 awarded Nice Question Aug 27 revised Finding the sample size given the 95% confidence interval bounds, standard error, and sample mean? edited title Aug 27 revised Finding the sample size given the 95% confidence interval bounds, standard error, and sample mean? edited tags Aug 27 asked Finding the sample size given the 95% confidence interval bounds, standard error, and sample mean? May 4 accepted Derivation of finite difference schemes for a boundary value problem. Apr 29 comment Derivation of finite difference schemes for a boundary value problem. Okay thanks. It does not specifically ask for a first order central difference, it just asks for "the central difference scheme for computing the numerical solution of the equation". Do you know what this means, exactly? Apr 29 asked Derivation of finite difference schemes for a boundary value problem. Apr 12 awarded Popular Question Feb 2 accepted Simplifying $1 - x + x^2 - x^3 + … + x^{98} - x^{99}$ to an equivalent expression. Feb 2 awarded Commentator Feb 2 comment Simplifying $1 - x + x^2 - x^3 + … + x^{98} - x^{99}$ to an equivalent expression. I see, thank you. It has been a long time since I have worked with geometric series. Feb 2 comment Simplifying $1 - x + x^2 - x^3 + … + x^{98} - x^{99}$ to an equivalent expression. So you are essentially just left with $1 - x^{100}/(1 + x)$? That is very convenient :) Feb 2 asked Simplifying $1 - x + x^2 - x^3 + … + x^{98} - x^{99}$ to an equivalent expression.