Binary Definition and 569 Threads

Application of the Doppler effect and Kepler's 3rd law Homework Statement (*This isn't the exact wording from a textbook, just as I had copied it down) An eclipsing binary star system containing stars A and B in concentric orbits (about their common centre of mass) has it's maximum red- and...

i found the recursive relation which is T(n) = 1 + t(n/2) after a couple of substitutions i found the pattern which is T(n) = 2i-1 + T(n/ 2i) i chose i = log2 n and then when i plugged it in i got T(n) - 2log2(n -1) + T(1) but doesn't the first part simplify to n-1? the complexity...

Homework Statement Suppose n\leq2 Let C be the code consisting of all binary strings of length n in which the sum of the bits is even. Is C and MDS code? is C a cyclic code? Homework Equations An MDS code is one where the codewords are separated by a maximum number of bits d. MDS codes obey...

Actually I was studying on 2nd postulate of special relativity. There I saw Ritz's emission hypotheses says for an object moving directly towards (or away from) the observer at v metres per second, this light would then be expected to still be traveling at (c + v) or (c − v) metres. Now...

Homework Statement A binary star system consists of a star P and a star Q, of mass 4.0 x 10^10 kg and 2.0 x 10^10 kg respectively, separated 6.3 x 10^9 m apart. Star P and Star Q move in circular orbits with their centers at the center of mass which remains at rest. Find the position of...

astronomy - conceptual, trigonometric parallax Homework Statement To determine a star's trigonometric parallax, we need at least 3 measurements of its position relative to much more distanct objects. Explain why this is true. (What else could change its position on the sky?) Homework...

Homework Statement *attached Homework Equations The Attempt at a Solution Let a,b ∈ H. Then (∀x ∈ S)(a*x = x*a) and (∀x ∈ S)(b*x = x*b). It is easy to see, then, that a*b = b*a. Now let c ∈ S. Then (a*b)*c = c*(a*b) by the associativity of *. Q.E.D.

So, I can see that it works by dividing a number by its base, recording the remainder, and then repeating until the answer is 0 (instead of a fraction, you wind up with an answer of 0 with a remainder). But how do I convert all the steps' answers&remainders into a binary number?

My name is Joe Fiero. Ever since I was a little kid, I loved science, especially science fiction. Sliders, Back to the future, Star Trek. I never had a chance to get a degree in the things I loved the most because I came from a poor family... which has lead me to a path of self education and...

Homework Statement I'm trying to divide 1010 by 1001 Homework Equations The Attempt at a Solution So far all I have is _1___________ 1001 |1010.000000000 1001 ------ 0001 I know that 1001 divides into 0001 0 times, but I don't know...

Source: http://en.wikipedia.org/wiki/Ternary_numeral_system The last sentence in the quote from the Wikipedia has recently intrigued me. I understand that the logarithm function returns a value which when used as an exponent to the base n gives the original input value. Can someone...

Homework Statement structure or behavior VHDL code of a 5-bits binary counter with a sync. load signal to preset the counter to a specific initial state. the output of the counter (Q0 to Q4) are connected to a binary decoder that shows the state of the counter.Homework Equations The Attempt at...

Hi, I'm looking for binary power plant example problems to work out. Does anybody know of any websites or links to books, or books in general which has some? Currently, I am trying to analyze a binary PP using propane, and for some damn reason the numbers keep blowing up when i get fairly...

(I asked this question in the Stack Exchange http://stats.stackexchange.com/questions/13014/how-to-combine-the-results-of-several-binary-tests" , but didn't get anything that was helpful to me.) I'm a programmer (former EE) working on a medical application. My last stats course was in...

On the website http://stackoverflow.com/questions/504335/what-are-the-pitfalls-in-implementing-binary-search, it states that the Pascal code (note that in Pascal, the array indexing starts with 1) PROCEDURE BinarySearch (A : anArray, Size : anArraySize...

Homework Statement 2 stars are separated by a distancce r, one star has mass 2/3M the other has mass 2M (M is a solar mass). The period of revolution is 5 years, calculate r. Homework Equations Fg=(GM1M2)/r^2 The Attempt at a Solution Ok so I know that the binary star...

Hi Folks Off my usual forum for a wee change, thought I'd post some thought's for discussion on a long held view of mine. That the universe is based at it's smallest scale on a simple binary on / off switch and that as a fractal, the universe is throwing up the same designs on each scale...

Homework Statement Number of 1 in the binary representation of the expression 162*9+162*7+16*5+3 Homework Equations The Attempt at a Solution obviously, anyone can add these numbers up and then convert to binary but what is the actual procedure for this type of format?

Hello. I have just regestered to tell the world of my amazing theory. I have called it, Binary universe. Albert Einstin said that everything puts a dent in spacetime. If sapce is flat, there is 2 sides witch means 2 universes. One is ours, an there's another one. I call it UB ( Universe B)...

I am unsure what is meant by binary operation. Is the binary operation of addition : addition and subtraction or is it just addition?

I am curious what the wikipedia page <http://en.wikipedia.org/wiki/Pythagorean_addition> is referring to when it qoutes that symbol " a Little X in a Circle ", It says and I qoute the binary operation a "that symbol" b = sqrt(a^2 + b^2), Pythagoreans Hypotenuse. Much abliged.

Homework Statement {xn} is an infinite sequence and xi ≠ xj if i ≠j. Let A and B denote all finite subsequences of {xn} and all infinite subsequences of {xn}, respectively. Show that B ≈ (0,1). Homework Equations The Attempt at a Solution Using binary expansion, given...

Designing 8-bit Binary to BCD Converter I have to design and implement an 8-bit binary to BCD converter **using only ICs** I have an algorithm that works just fine in converting an 8-bit binary to BCD that can be sent to three 7-segment displays. It is called the double dabble method. Please...

1) So, does the binary phase always represent the materials 100% on each end? That is to say, if you have lead and antimony, the right side will always represent 100% of one of the two, and the other side will present 100% of the other. If we look in the middle of the diagram, it's 50-50%...

Here's the question. Starting with an integer a≥2, we write on its left, below it, the number a+1, and on its right, below it, the number a^2, and obtain four numbers, to which we continue the process. We thus obtain a binary tree, whose root is a. Prove that the numbers in every line of the...

This may sound like a stupid question, but binary code seems so "simple", but it's been with us since the 1940's. What'd be wrong with tertiary code, say?

What are the other types of geothermal cycles aside from dry, binary and flash?

in analysis of close binary stars, it is assumed that their orbits is circular and then by a rotating coordinate system, potential is obtained and then lagrangian points and so on... Is the orbit of CLOSE binary stars nearly circular in reality or is it assumed circular because otherwise it is...

Homework Statement Consider the following binary relations on the naturals (non-negative integers). Which ones are reflexive? Symmetric? Anti-symmetric? Transitive? Partial orders? a) A(x,y) true if and only if y is even b) B(x,y) true if and only if x < y c) C(x,y) true if and only...

I'm attempting to write some simulation VHDL code that will be able to write the output of my simulation as a single string of binary values in a .dat file. So far I've used both the textio and std_logic_textio libraries to write the signals to a .txt file as text. Is there a library I can...

Homework Statement The following binary in signed 2s complement form. Perform the indicated arithmetic operations and verify the answers. Indicate whether overflow occurs for each computation. a) 110001 – 010010 b) 001011 + 100110 c) 101110 – 110111 d) 100111 + 111001 Homework Equations The...

Hi It is stated that: "for a visual binary system, the measured trigonometric parallax is 0.3749+/-0.0057 arcsec." I don't know this angle is parallax of what? I can guess it like this: 0.3749+0.0057 arcsec is the parallax of the whole system when they are at most distance of each other...

Hi As two stars orbit their mutual center of mass in elliptical orbits, why are their eccentricity the same? And why is it the same as the one of reduced mass around center of mass? Thanks

consider the binary encoding function that sends (a1,a2,a3) into (a1,a2,a3,a1+a2, a2+a3, a1+a3,a1+a2+a3). First , how can I give a generator matrix of this code . then how can I provide the parity check matrix , giving n,k and the minimum distance of the code. Finall, how to decode m1=1100010...

Homework Statement Beginning with the kinetic and potential energies of two objects with masses m1 and m2, show that the total energy of a binary system is given by: E=\frac{1}{2}\muv2 - G\frac{M\mu}{r} Homework Equations The one given K =\frac{1}{2}mv2 U = G\frac{Mm}{r} The...

Homework Statement Hey everybody! here is my question: Translate the following machine code instructions to MIPS assembly. What is the format of each instruction? 1. 0000 0000 0000 1010 0100 1010 1000 0000 2. 0000 0000 0010 0010 0010 0000 0010 0101 Homework Equations The Attempt at...

Hey Guys! Thank you for checking out my Thread... I am taking a computer assembly class and i have homework due on Wed but i am stuck on a single problem. I have to convert MIPS instructions into binary, I want to learn how to do this because it will be on a test... and i could just go into...

Homework Statement Determine whether the operation has an identity element. x*y = 3xy Homework Equations e*x = x*e = x, if this holds, e is an identity element The Attempt at a Solution My attempt: x*z = z*x = 3xz, then 3xz = x <=> z = 1/3 => e = 1/3. But the answer key in the...

Question: Write a program that reads a four-bit binary number from the keyboard as a string and then converts it into decimal. For example if the input is 1100 the output should be 12. Attempt: import java.util.Scanner; public class run { private static final String number = null; public...

I need to learn and understand why a component of a binary solution cannot be 100%. This needs to be done thermodynamically with equations. I can not find much online, and i need good detail of equations and graphs. Thanks if you can solve.

I can't seem to get any of the answers for this - please help! Two stars of equal mass M orbit a common centre. The radius of the orbit of each star is R. Assume that each of the stars has a mass equal to 1.5 solar masses (solar mass=2x10^30kg) and that the initial separation of the stars is...

In binary can we have a value with "deci" "centi" "mili" or more lower valued prefix? i have learned that, 1 Kilo Byte = 210 byte 1 Miga byte = 220 byte . . . . 1 Yotta byte = 224 byte Now my question is, can we have a DECI, CENTI, MILI bytes? i assume the answer could be negative...

I have read somewhere: Any decimal number in the range 0 to 2^(n-1) can be represented in binary form as an n-bit number. I suspect it's wrong. Shouldn't it rather be 0 to [(2^n)-1]? Please guide me. Thanks.

Hi Using the binary system for computing is a natural choice because of its two states: 0 and 1. But is this possible to use base 10, which is used in everyday matters, instead of base 2? Please remember that I'm neither a student of comp. science nor of science/math, in general. Thanks...

Homework Statement hey guys... i try to do multiplication of two's complement number. I'm using straightforward method, which give me wrong answer.. i know i can't use this method.. but.. i just want to know why.. why i can't use this method? The Attempt at a Solution 1001 x 0101 = 0101101...

Hello. I have a question concerning the stability of a hypothetical binary planet system. I'm sorry if this properly belongs in general astronomy instead of astrophysics, but it does concern orbital mechanics. The hypothetical system is an Earthlike planet orbiting a relatively bright K class...

Homework Statement convert 0.e to binary Homework Equations The Attempt at a Solution the method the teacher taught for numbers less than zero was multiply by the desired base. then take the whole number and write it down as part of the converted number and drop it. ie 0.8*2...

Shifting up from binary URGENT! Hi, I have a project that requires me to multiply a digital input by 2 and 4. Every website I've looked at keeps telling me to "shift it up 2 bits". I know how that works theoretically, ie. adding a 0 after the binary number would be multiplying it by 2. But how...

Hi Let us suppose we transmit the binary digit '1'. The probability of not receiving '1' is p. Thus the probability of receiving '1' is 1-p. Suppose we send a longer code of length n. The probability of this code being received correctly is (1-p)^n. Now I don't understand this next...

Homework Statement http://img593.imageshack.us/img593/3376/76384308.jpg The Attempt at a Solution i've got no problem with question a) but.. i've got couple of question in question b) my solution is.. 0111 + 1011 = 1 0010 is it correct? how am i going to verify it in...