# Gineer

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bio website sites.google.com/site/gineer location Swindon, United Kingdom age 38 member for 1 year, 1 month seen May 9 at 5:16 profile views 60

Technical Architect who loves to program. Just whish I could code something of meaning instead of financial systems for banks and insurance companies.

 May9 accepted Which value of $k$ in $e(k) = 5$ where $E(z)=5z^{-1}+z^{-2}+2z^{-4}$? May6 asked Which value of $k$ in $e(k) = 5$ where $E(z)=5z^{-1}+z^{-2}+2z^{-4}$? Apr17 comment Proving that $L\{e^{at}\} = \frac{1}{s-a} s>a$According to bit.ly/111XHei line 2 should simply become $e^{-B(s-a)}$. I still don't get where the denominator comes from or the "-1" in the numerator in line 4? Apr16 accepted $L\{\cos{at}\}$: What happens to $i^2$? Apr16 asked $L\{\cos{at}\}$: What happens to $i^2$? Apr16 asked Proving that $L\{e^{at}\} = \frac{1}{s-a} s>a$ Apr6 accepted $x_1[n]=0.9\delta[n-5]$ in Matlab (Checkm Apr4 asked $x_1[n]=0.9\delta[n-5]$ in Matlab (Checkm Apr3 awarded Yearling Nov30 accepted Why does the series $\sum_{n=1}^\infty\frac{(-1)^{n-1}n!}{10^n}$ not converge? Nov20 asked Why does the series $\sum_{n=1}^\infty\frac{(-1)^{n-1}n!}{10^n}$ not converge? Nov20 accepted Am I correct if I say $\lim_{n\rightarrow\infty}\sum_{k=1}^n\frac{\sqrt{k}}{(k+1)^2}$ converges? Nov20 revised Am I correct if I say $\lim_{n\rightarrow\infty}\sum_{k=1}^n\frac{\sqrt{k}}{(k+1)^2}$ converges?edited body Nov20 asked Am I correct if I say $\lim_{n\rightarrow\infty}\sum_{k=1}^n\frac{\sqrt{k}}{(k+1)^2}$ converges? Nov20 asked Series with multiple variables Nov19 awarded Cleanup Nov19 revised Find the sum of the first $n$ terms of $\sum^n_{k=1}k^3$rolled back to a previous revision Nov19 accepted Find the sum of the first $n$ terms of $\sum^n_{k=1}k^3$ Nov18 comment Find the sum of the first $n$ terms of $\sum^n_{k=1}k^3$@Gautam Shenoy: Why would I randomly try to expand $(k+1)^4$? I have an example in my book that I just found doing the same thing for $\sum_{k=1}^nk^2$ where they then expand $(k+1)^3$. Where does this come from? Nov18 comment Find the sum of the first $n$ terms of $\sum^n_{k=1}k^3$@user49521: What is special about n=4?