Bit Definition and 380 Threads

Game Theory a problem which is a bit similar to the "Impossible Puzzle" From numbers 1 to 10, two integers X, and Y (not necessarily distinct) are chosen by a referee . The referee informs secretly to Joe the integer U where U = X + Y . The referee informs secretly to Bob the integer V where V...

sorry if this looks ugly but I couldn't find out how to write out bras and kets on the Latex thing. I have these inner products <f|g> = i<x|(AB - A<B> - <A>B + <A><B>)|x> and <g|f> = -i<x|(BA - B<A> - <B>A + <A><B>)|x> where |x> is some arbitrary ket and A and B do not commute. I'm trying to...

here's the problem: "In a two dimensional vector space, consider the operator whose matrix is written as \sigma_x = \left(\begin{array}{cc}0&1\\1&0\end{array}\right) . in an orthonormal basis {|1>, |2>}. Calculate the eigenvalues and normalised eigenvectors for the operator in this basis."...

I am a Math and Physics major. I eventually hope to go to graduate school for one or the other. The areas of Physics I am more interested in are a bit more towards academic research, not really applied physics or engineering. I have a friend who has a farther that works for an applied physics...

Hi I got a question regarding conservation of mechanical energy. The mechanical energy of a system is conserved, as long as there are no transfer of energy (like heat, work, mechanical waves etc.), right? So, why is the mechanical energy in the system of the pivoting rod and the earth, as...

I admire Newton's work and agree that he was a great scientist. He came up with many new original ideas. But there are many other scientists who are equally or perhaps more great who are not held as high as Newton. Some of the names which I could think of off hand are: Archimedes, Leibniz. My...

So, I've been tasked to learn SUSY in a small time span (few weeks) and I've made some progress but I'm a little stumped on how deeply I should go into things while still making reasonable progress (get to phenomenology, etc). First of all, most primers seem to gloss over the algebra or go...

My math is rusty so please tell me 1010101010[/size] does not equal (((1010)10)10)10 , right ?

With regards to this http://www.electronics-tutorials.ws/waveforms/555_oscillator.html, I figured out how to get t2 fine, but I have a problem figuring out how to get t1...I know when the negative-going waveform at pin 2 crosses Vcc/3, pin 3 goes to Vcc, and pin 7 gets internally disconnected...

Hello! I've been working out the truth table to a logic gate which I've been told is a 2 Bit Adder. The inputs, in the order of the truth table below are 0, 1, 0, 1. Inputs: Outputs: 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 1 0 0 1 1 1 0 0 0 1 1 1...

When I first started high school, I was pretty dead set on being an engineer. Now, it's college apps time, and I'm more clueless than when I started. Why? Over the years I've become more and more tired of math. Geometry was fun - but starting from Algebra I've felt like a human calculator, to...

Homework Statement I have to make a scheme of a bit detector that detects the bit "1101" with a Mealy Machine. So I have made the following state diagram and state table(picture 1 and picture 2) http://img215.imageshack.us/g/picture1jf.png/" Now I don't know what happens in picture 3. How...

Homework Statement This problem is for a cordless drill. http://img718.imageshack.us/img718/8531/drill1.jpg Homework Equations [PLAIN][PLAIN]http://img442.imageshack.us/img442/3511/drill2.jpg where N denotes number of teeth w denotes angular velocity The Attempt at a...

Hi, I have a problem that arose in one of my courses that I've gotten stuck on. I reduced it to two equations in two unknowns but can't get any further. I've apparently forgotten all the trigonometry I used to know. C = Acos(x) + Bcos(y) 0 = Asin(x) + Bsin(y) where A,B,C are known but...

Here comes the model situation. I have a man on a planet and two ships. One ship will go straight to from a planet and another one will go opposite direction. Well that's for me very interesting. Because i will travel with ship near to speed of light from Earth the Earth time will be for me...

Homework Statement Take the integral of 1/[(z^2 + x^2) ^ 3/2] dx where z is a constant. Homework Equations The Attempt at a Solution I tried substitution, but couldn't get it to work. Thanks in advance.

Hello all, Although I am currently working on implementing FORTRAN on my Mac, I would also like to find a compiler that works well with Windows 7 32-bit. I initially had Win7 64-bit installed on my computer, but when I went to use my (really old) DIGITAL Visual Fortran install disk, it said it...

I am not into politics, but one issue that has bugged me is the missed opportunity of the last 2 years. There are very few moments in US history when one party holds the super majority, that precious balance that is veto proof. I was really looking forward to an overhaul of the US...

I don't understand. Why can't we use quantum entanglement by the means of altering a state of an entangled electron so we can send an instantaneous bit of information to anywhere in the universe infinitely fast by the other electron changing its quantum state? We can can in theory transmit...

I'm not sure wether the top shape triangle the x-axis should be minus or plus. i've got all the areas including x1 x2 x3 x4 and y1 y2 y3 y4 since I've splited the whole shape into 4 shapes (2 triangle and 1 square and 1 rectangle).would appreaciate if anyone can help me out with it...

Hi How would I use 4x4bit multipliers to calculate an 8x8 bit multiply? Thanks

I have a doubt regarding the speed of light. What makes it impossible to achieve it. Why can't we have a relative velocity greater than that of C. Some say you should not apply common physical world logic in these fields. But, Consider we have 2 laser sources separated by 2c distances. Say we...

Hi guys, recently I am reading Kleppner's Mechanics about center of mass, well, I am always a fairly fast learner, but I really got stick here. you see, in the page 119 example 3.3 (in short, a rod with nonuniform density ) let Q(x) be the function density of location vector it said...

Hi, I'm trying to teach myself a bit about spinors, mainly from reading about geometric algebra. There is something that I can't figure out though. According to GA, spinors are elements of the even graded subalgebra, so scalars, bivectors and so on. But the electromagnetic field is a bivector...

I am currently (considered) a junior in high school having just finished my sophomore year. I will be taking AP Calc BC, Physics C (both units), along with Computer Science 1 and 2 at a community college. I have a strong background in computational problem solving and am fluent in C++, Java...

At the university level, is one expected to complete math assignments using ink? Maybe a laughable question, but I've heard different things from different people, from "you will never use a pencil after high school" to "math is a different story", etc. I ask because I've gotten kind of used...

a bit tricky integral! Homework Statement Integral of (sqrt(cot[x])dx) Homework Equations I just need a hint :) The Attempt at a Solution

i have attached a picture showing the problem; just wanting to know if my working out and reasoning is correct please. http://img29.imageshack.us/img29/5412/questionsq.jpg The Attempt at a Solution i have used KCL to answer (a) and (b) and have answers 0.6 and 1 respectively. for (c) and (d)...

I would like to learn a bit more about triality of SO (8) as discussed in this http://en.wikipedia.org/wiki/SO%288%29" . Especially the article says: What do they mean by outer automorphism? How does this automorphism connect the three representations? What is meant by vector...

pretty new to this whole computer architure thing, so i appreciate the answers given to my previous question, went through a lecture today in class, came out pretty clueless...what i would like to know is how exactly would the block diagram for a four bit adder circuit look? thank you for...

Homework Statement The Hungarian national highway M7 is made of concrete blocks 4m long. The joints have a small gap. Józsi have a mass of 80 kg. He owns a Polski Fiat, which is lowered by 10 cm when he sits in. At what speed would Józsi's car disintegrate? Homework Equations v =...

Hi can somebody help me with part B of this question please? :) I already did part a) and I found the peak current to be 31.1 mA, and the power rating required to be 4.84 W. For part B I know the current for inductance is I=(1/L)\intVdt and I know V=V0sin(wt), however with only this...

Hello, i had a quick question, basically i am trying to build a 4 bit full adder logic circuit on a motherboard. i been trying to research but i came up empty...i would like to know what are the exact parts that i need to successfully build this logic circuit? thanks..

Homework Statement I want to write the following if statement into simply manipulations using the bit operations: ! ^ & | << >> ~ + Given an x... if ( x == -1 || x == 0) return -1; else return 0; I am dealing with 32-bit integers. How do I go about doing this? (Note: -1 is...

Homework Statement I am wondering is there a way to count the number of bits to the left or right of a given 1 in a 32-bit integer? For example, if I give the function the number 32 = 0b100000, there are 5 bits to the right of the 1 and hence, 26 bits to the left of the 1. The catch...

Hi all, I am wondering is there a way to count the number of bits to the left or right of a given 1 in a 32-bit integer? For example, if I give the function the number 32 = 0b100000, there are 5 bits to the right of the 1 and hence, 26 bits to the left of the 1. The catch is, is there a way...

I am aware that a vector is a first-order tensor, and that a second-order tensor has nine components in three-space, but can someone tell me more about the directional quantities that are associated with these nine components? Are they still unit vectors? Can a second order tensor be written as...

Hello all, I'll start with the beginning to give the best overall picture. I was born and raised in a religious cult. The impact on my life due to this has been significant as one could imagine. I'll leave the religious identity out as this isn't the forum for it. With such an upbringing...

Many here are surely familiar with the claims that Obama is a closet socialist. What is funny about this is that I have a friend who calls himself a true socialist. In fact, formally he is probably a Marxist. He is well-studied in political philosophy. He can't stand the evil capitalist...

Statics assignment a bit urgent So here is my assignment. i wish that someone could help me. now i know that this system is statically determinate and that i can compute the forces. my problem is that i cannot figure out how i can compute the moment. the Aim of the assignment is to find all...

What is the number of bit permutations of the set {0,1}n and the number of circular right shifts of the set {0,1}n. I think the number of bit permuations is 2n, so is there 4 bit permutations here? Namely (0,0), (0,1), (1,0) and (1,1). And the right shift is just sending each element one space...

i can't understand the transistor completely i can understand how it works but this stupid conventional current is confusing me completely please can anyone give a lengthy explanation on working of transistor CE CB CC types. i don't understand all these types of transistor i.e how current...

Hello there, I've been here before to ask for help with my fears about the LHC a while ago. Suffice to say I eventually overcame them thanks to the help from some members of this forum and that of Michaelangelo Mangano of CERN. However recently I've decided to revisit the old LHC Defense forums...

Towers of hanoi induction-- slight bit i don't understand Homework Statement I am trying to prove towers of hanoi. Now I am on the induction part and there is a part I don't get. I have the whole thing, but i don't understand a couple lines.Homework Equations The Attempt at a Solution WTS...

For first order linear differential equations when is it alright to use the dy/y-b/a = -adt form and when you must use the integration factor technique? In general i was able to obtain a solution using both methods. Also, how do i draw a direction field which contains both t and y variables...

This is so wrong! And just a little bit funny! http://www.msnbc.msn.com/id/32581670/ns/today-today_pets_and_animals/displaymode/1247/?beginSlide=1" I have to admit, I did chuckle at some of these pix :redface:. Poor, poor doggies.

So my mother mentioned to a co-worker, who is a "math guy," that I was interested in math. The co-worker subsequently gave her a piece of paper with the following written on it to give me to to "solve" or "prove" in my mother's words, yet I am unsure what to do. Here is what was on the paper...

Homework Statement Solve the differential equation R\frac{dq}{dt} + \frac{q}{C} = v_0 R is resistance, q is charge, t is time, C is capacitance, and v_0 is the EMF of the power supply.Homework Equations First-order linear differential equation solving method The Attempt at a Solution This is a...

So here i am, trying to understand a lossless transmission line that has open-circuit termination. So i start with the generic Zi, the equivalent impedance seen by the source, then allow the load impedance (Zl) to approach infinity. As you can see, i have no idea how to do it. It's been way to...

My high school career, there's a bit of a problem... Well, I am learning a bunch of math outside of school, but I don't really fall into the category of a person that likes math. I look like a skater kid. I'm sure you're going to say something like "looks don't matter" or whatever, but people...