Recent content by mattbonner

I understand how a full-adder functions, it's simple enough. However, I'm having a hard time grasping how a full-subtractor works... I found this diagram http://www.art-sci.udel.edu/ghw/phys245/05S/assignments/answers/images/13-35sub.gif but I'm not understanding how the Borrow-in's and...

i vaguely remembered a similar example the prof did, i missed how he had chosen u and v, which resulted in my confusion thank you so much for the help!

i guess y/x? that'll give me 1 to 2 as well?

Homework Statement using change of variables, find the region bounded by y = x, y = 2x, xy = 1, xy=2 Homework Equations The Attempt at a Solution i know i have to introduce the variables u, v the problem is i don't understand how to introduce them i tried read the textbook but...

webworks (the online assignment thing my school uses) is telling me my answer is incorrect nvm i know where the mistake was made

Homework Statement (4y4-9x2y2-144)dx - (5xy3)dy = 0 Homework Equations substitute y = xv dy = dx v + dv x The Attempt at a Solution after substituting i got (4x4v4-9v2x4-14x4)dx - (5v3x4)dx.v + dv.x = (4v4-9v2-14)dx - 5v3(dx.v + dv.x) = 0 = dx(4v4-9v2-14-5v4)+dv(-5v3x)= 0...

oh wow i feel like such a moron thank you so much! edit: wait, for y''(0) i differentiated it, and i got 14x?edit(2): nvm i solved it

Homework Statement Suppose that the initial value problem y' = 7(x^2) + (5y^2) − 6, y(0)=−2 has a solution in an interval about x=0. Find y'(0) = Find y''(0) = Find y'''(0) = Homework Equations get it into standard form: dy/dt + p(t)y = g(t) find integrating factor =...

Does anyone know of any resources (preferrably free) to learn C for someone who has learned Java before?

hi, my calc class' designated textbook is calculus:several variables by robert a. adams. however, stewarts' multivariable calculus is also recommended. which one would you recommend out of the two?

Homework Statement A laser is shone through a set of slits and onto a screen. I have a Δy vs. L graph plotted, where Δy is the spacing between successive nodes, and L is the distance from the slits to the screen. I'm supposed to find the spacing between the center of the slits. The value of λ...

ooh I think I'm starting to see it: dq = \lambda dy and \lambda = \frac{Q}{2L} and then \lambda can be brought out of the integral and that's where the 2L comes from! Thank you so much! This was bugging me for quite a while.

Due to symmetry, I multiplied by cosine, which I think is D/r

Homework Statement A charge Q = 4.35 ×10−4 C is distributed uniformly along a rod of length 2L, extending from y = -21.1 cm to y = +21.1 cm, as shown in the diagram 'on your assignment above. A charge q = 6.05 ×10−6 C, and the same sign as Q, is placed at (D,0), where D = 74.5 cm. Use...