Andres

198 reputation

bio	website
	location	Cordoba, Argentina
	age	19
visits	member for	11 months
	seen	May 14 at 14:32
stats	profile views	19

I love electronics, designing my own devices and learning all the time. I like programming too, specially Android apps and microcontrollers. I am from Argentina and currently studying Electronic Engineering at UTN University.

	198 reputation	bio	website		visits	member for	11 months
6 badges		location	Cordoba, Argentina		seen	May 14 at 14:32

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May 14	awarded	Caucus
Dec 14	reviewed	Approve suggested edit on How to demonstrate if H is a subspace?
Dec 14	comment	How to demonstrate if H is a subspace? Yes, I think I can do that but I only have one vector, whats is the other vector $v$ ?
Dec 14	asked	How to demonstrate if H is a subspace?
Sep 21	awarded	Custodian
Jun 26	accepted	Understanding Riemann sums
Jun 26	comment	Understanding Riemann sums Shouldn't be each points $iΔx$ for the right point and $(i-1)Δx$ for the left one instead $\frac{i}{n}$ ? I don't understand that :/ By the way very nice explanation :)
Jun 26	comment	Understanding Riemann sums Thank you :) I understand what you are saying. But my $f(x) = \sqrt{x}$ That's why I don't understand why it is $\frac{i^2}{n^2}$ unless my book had an error. I understand that Riemann is: $$\sum_{i=1}^n f(C_i)Δx$$ But the divisions in n intervals of the funtion are not neccessarily equal.
Jun 26	comment	Understanding Riemann sums $C_i$ is each point on the x axis. $C_i(right)$ is the right point of a rectangle and $C_i(left)$ is the left point
Jun 26	awarded	Editor
Jun 26	revised	Understanding Riemann sums added 25 characters in body
Jun 26	comment	Understanding Riemann sums $f(x)=\sqrt{x}$
Jun 26	asked	Understanding Riemann sums
Jun 24	comment	How to integrate $\int{\frac{dx}{\sqrt{16-9x^2}}}$ Thank you I fully understand it now :) If only my teachers were like you :)
Jun 24	accepted	How to integrate $\int{\frac{dx}{\sqrt{16-9x^2}}}$
Jun 24	comment	How to integrate $\int{\frac{dx}{\sqrt{16-9x^2}}}$ Nice, so it is possible to do whitout trigonometric substitution
Jun 24	comment	How to integrate $\int{\frac{dx}{\sqrt{16-9x^2}}}$ Mmmm... My teacher didn't teach me that. Is any rule to do that substituion like $u-substitution$ ?
Jun 24	asked	How to integrate $\int{\frac{dx}{\sqrt{16-9x^2}}}$
Jun 24	comment	How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$ I am stupid... Is not good to do exercises during 3 hours whitout rest... I was forgetting $e^{2x}=(e^{x})^2$
Jun 24	asked	How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$