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Interested on statistics, mathematics and machine learning :)


Apr
8
accepted Determining a value $c$ such that the function $f(c) = \displaystyle\sum_{i=1}^n \left|\frac{y_i-c}{y_i}\right|\times v_i$ is minimized
Apr
8
comment Determining a value $c$ such that the function $f(c) = \displaystyle\sum_{i=1}^n \left|\frac{y_i-c}{y_i}\right|\times v_i$ is minimized
+1 Thank you very much @ChristianBlatter
Apr
8
revised Determining a value $c$ such that the function $f(c) = \displaystyle\sum_{i=1}^n \left|\frac{y_i-c}{y_i}\right|\times v_i$ is minimized
added 57 characters in body
Apr
8
revised Determining a value $c$ such that the function $f(c) = \displaystyle\sum_{i=1}^n \left|\frac{y_i-c}{y_i}\right|\times v_i$ is minimized
added 27 characters in body
Apr
8
asked Determining a value $c$ such that the function $f(c) = \displaystyle\sum_{i=1}^n \left|\frac{y_i-c}{y_i}\right|\times v_i$ is minimized
Apr
4
accepted Steel mixture homework problem
Apr
4
comment Steel mixture homework problem
+1 Thnx, good advice, I'll keep that in mind =)
Apr
4
comment Steel mixture homework problem
+1 Thank you @Riccardo, I thought so too, thnx =) Appreciate it
Apr
4
revised Steel mixture homework problem
added 110 characters in body
Apr
4
asked Steel mixture homework problem
Apr
4
accepted Confusion with the definition of mean value
Apr
4
comment Confusion with the definition of mean value
+1 @JohnJoy Thank you for your help! =) I think your answer was the best so far =)
Apr
3
accepted Understanding pointwise convergence vs. uniform convergence example
Apr
3
comment Understanding pointwise convergence vs. uniform convergence example
+1 Aaah, now I got it ;) That did it, thnx @V.C. Appreciate it =)
Apr
3
comment Understanding pointwise convergence vs. uniform convergence example
By the way @V.C. , silly question, but could you quickly clarify why $\sup_{0\le x\le1}|x^n-f(x)|=1$? I'm bit confused with supremum x) Because to me it seems you chose different value of $x$ for $f_n(x) (= x^n)$ and $f(x)$. I mean doesn't $\sup_{0\le x\le1}|a^n-f(b)|=1$ only if $a<1, b=1$ or when $a=1, b <0$? Confused x)
Apr
3
comment Understanding pointwise convergence vs. uniform convergence example
Thank you for your help! =) It seems my problem is that I misunderstood supremum.
Apr
3
asked Understanding pointwise convergence vs. uniform convergence example
Apr
2
comment If periodic function has a discontinuity at $x_0$ its Fourier series cannot converge uniformly on any interval containing $x_0$, why?
+1 Thank you @DanielFischer
Apr
2
asked If periodic function has a discontinuity at $x_0$ its Fourier series cannot converge uniformly on any interval containing $x_0$, why?
Mar
25
accepted Infinity and Hilbert's hotel paradox