Recent content by thedc

Homework Statement The question is pretty basic, but for some reason I can't find a way to do it. I just need to find out what Eo is. I am given nTo= Eo-(2/7)sin(Eo) n=1 rad/tu To = 2.146 tu 2.146 rad = Eo - (2/7)sin(Eo) Homework Equations The Attempt at a Solution I...

Alright let's see, \psi(x,y)=(x,y,f(x,y)) ... \frac{\partial \psi}{\partial x} = [ x/dx , y/dx, f(x,y)/dx] = (1, 0 , f(x,y)) \frac{\partial \psi}{\partial y} = [ x/dy, y/dy, f(x,y)/dy] = (0, 1, f(x,y)) cross those two. | 1 0 f(x,y)/dx | | 0 1 f(x,y)/dy | (0 - f(x,y)/dx)i -...

Homework Statement Can anyone help me solve couple(if not all of these problems on this practice test? I have this huge test thursday and I can't seem to get any of these concepts thru my head. You might not be able to solve the first set of problems(1-6) because of a different teachers...

Homework Statement Let f(t) denote a causal signal. Show that L+ {f(−at)} = 0 for any a > 0. Homework Equations The Attempt at a Solution I know that the laplace{f(at)} = 1/a*F(s/a) but by simply placing -a whenever determining the Laplace, my signs gets confused within the...

I still don't get it, do i take the derivative of 2/x? that would be f(x)'=-2(1/x^2)

Homework Statement [Divide and average Method] Square root of 2 was computed using the formula Xi+1 = 1/2 ( Xi + 2/Xi).------------ (1) Derive this method from the Newton-Raphson Formula Homework Equations The Attempt at a Solution Im boggled at how to derive this...