Recent content by mattb8818

I'm currently in the process of building this project: http://www.serasidis.gr/circuits/AVR_oscilloscope/avr_oscilloscope.htm Here's the schematic: http://www.serasidis.gr/circuits/AVR_oscilloscope/images/SCHEMATIC.GIF I was wondering if it would be possible to power it with a 9.6...

Ok thanks all I am glad I atleast did it right. I looked it up and e^x-e^-x/2 = sinh or something like that, but I guess that was my only mistake so I am happy.

Thanks for the replies I did it with the chain rule and got (2xe^2t)/(x^2 + y^2)^1/2 + -(2e^-2t)/(x^2 + y^2)^1/2 The answer is 2(s)^1/2(sinh4t)/(cosh4t)^(1/2) I don't really understand this solution

Homework Statement Find dw/dt. Check result by substitution and differentiation w = (x^2 + y^2)^1/2, x = e^2t , y = e^-2tHomework Equations The Attempt at a Solution dx/dw = x/(x^2 + y^2)^1/2 dy/dw = y/(x^2 + y^2)^1/2 Dont really know where to go with it

Ok, It is for a multivariable calcul us class. Could I give a few examples and maybe you could explain them to me? Find parametric rep. of Circle y^2 + 4y + z^2 = 5, x = 3 what curves are represented? 2 + r cos 4t, 6 + r sin 4t, 2t

I was wondering if someone could give me an overview of what they are and how to get them. Thanks