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 Questions 'n' Answers about 'Computation' Opens New Window.

Q.How to covert the galvanometer to an ammeter and computation of shunt resistance?Related Search:
Engineering
 Also the conversion of galvanometer to an ammeter and the computation of series resistance. If the resistance of a galvanometer coil is 25.0 0, and the current required for full-scale deflection is 500/LA.
A.You have to arrange for some of the current to flow through the galvanometer, and some to flow through the shunt resistance (which is placed in parallel with it). Using Ohm's Law, you can work out what voltage will be across the galvanometer at full-scale deflection; and then, all the excess current must be flowing through the shunt resistance. Since you know the current (which is the amount you are trying to measure, minus the amount flowing through the galvanometer) and the voltage (remember, things which are in parallel with one another have the same voltage across them), you can work out the resistance.
  

Q.How can Wang tiles be used for computation?Related Search:
Mathematics
 I'm reading a book at the moment on DNA computation. One chapter is about self assembling computers using DNA crossover molecules that act as Wang tiles when computing. But the description in the book of how computation was carried out was very brief and after multiple re-readings I can't get my head around it. Can you help?
A.Hi, It has already been explained in the links below. Hope the links could help you. Kind regard, R
  

Q.Approximate the maximum possible error in the computation of the area?Related Search:
Mathematics
 A triangle is measured and two adjacent sides are found to be 3 inches and 4 inches long, with an included angle of π/4. The possible errors in measurement are 1/18 inch for the sides and 0.01 radian for the angle. Approximate the maximum possible error in the computation of the area. I got .33 cuz i did found dA but im not sure im doing it right can anybody help?
A.let a = 3, b = 4 and θ = π/2 be the measurements that you gave for the triangle. Then the area is: A = 0.5ab sin(θ) Find the partial derivatives. ∂A/∂a = 0.5b sin(θ) ∂A/∂b = 0.5a sin(θ) ∂A/∂θ = 0.5ab cos(θ) Approximate the error in the area due to each measurement by multiplying the partial derivative by the error in the variable that you took the derivative with respect to (substituting the known a, b, and θ into them also). Then add them all up to get the total error. I got an answer of 0.180 in^2 for the estimated error.
  

Q.How many signifcant figures should there be in the answer to the following computation?Related Search:
Chemistry
 How many signifcant figures should there be in the answer to the following computation? (10.07 + 7.395)/2.5 1 2 3 5 What is the answer to the following subtraction using significant digits? 4.250-3.250 1 1.000 1.00 7.500
A.There are 2 sf in first question. Answer to second question: 1.000
  

Q.I need the guidelines in the computation of proportional vacation pay for teachers in the Philippines. u know?Related Search:
Teaching
 Where can I download the legal basis and guidelines in the computation of Proportional Vacation Pay (PVP) for teachers in the Philippines? I tried to search from the net but utterly failed. Please help.
A.All I found were memos...they might help. [Link]  Good Luck
  

Q.Respected honourable gentry could you provide the format of computation of income of an employee?Related Search:
India
 Sir, I want to know the latest income tax computation format of an employee. i.e, the process of arriving taxable income.
A.Input Amounts Gross Salary including Perquisites (Annual Salary including Perquisites) Allowances Exempt u/s 10 / Deductions (HRA, Conveyance, Medical, LTA, P.Tax, etc.) Interest on Housing (Housing Loan Interest upto Rs.150,000) Income from Other Sources (Profits, Dividends, Interest, etc.) Investments 80C+80CCC+80CCD (PF,LIP,PPF,NSC,Hsg Principal,Infra.Bonds,etc.) Other Deductions (Mediclaim, Int.on Higher Edu.Loans, etc.) Results Taxable Income Income Tax
  

Q.DO you think its valuable for students to see more than one method of doing computation problems?Related Search:
Mathematics
 Do you think it is valuable for students to see more than one method of doing computation problems? Why or why not? Please help thanks.
A.Yes - depending on the situation, one way of doing it may be better than the other, and visa versa. So if you only know 1 way of solving something, it may not be the "best" one to use in certain situations. Someone knowing the alternate ways to solve the same problem will be able to find the answer faster, and be able to do other things in the time it takes for the first person to finish.
  
 Dictionary Opens New Window.
4 definitions found for Computation:

From The Collaborative International Dictionary of English v.0.48:

Computation \Com`pu*ta"tion\, n. [L. computatio: cf. F.
   computation.]
   1. The act or process of computing; calculation; reckoning.
      [1913 Webster]

            By just computation of the time.      --Shak.
      [1913 Webster]

            By a computation backward from ourselves. --Bacon.
      [1913 Webster]

   2. The result of computation; the amount computed.
      [1913 Webster]

   3. (Computers) The process of performing arithmetical or
      logical operations, on data by an electronic device.
      [PJC]

   Syn: Reckoning; calculation; estimate; account.
        [1913 Webster]


From WordNet (r) 2.0:

computation
     n 1: the procedure of calculating; determining something by
          mathematical or logical methods [syn: calculation, computing]
     2: problem solving that involves numbers or quantities [syn: calculation,
         figuring, reckoning]


From Moby Thesaurus II by Grady Ward, 1.0:

55 Moby Thesaurus words for "computation":
   accounting, adding, adding machine, analysis, appraisal,
   appraisement, approximation, arithmetic, assessment, assize,
   assizement, automatic electronic navigation, braking, calculation,
   calculator, calculus, casting, ciphering, coordination, correction,
   determination, estimate, estimation, evaluation, fact distribution,
   figuring, footing, forecasts, gauging, inspection, instrumentation,
   manipulation, measure, measurement, measuring, mensuration,
   metric system, nonlinear calibrations, output measurement,
   processing, quantification, quantization, rating, reckoning,
   record keeping, steering, supersonic flow detection, survey,
   surveying, telemetering, telemetry, totaling, toting,
   triangulation, valuation


From Bouvier's Law Dictionary, Revised 6th Ed (1856):

COMPUTATION counting, calculation. It is a reckoning or ascertaining the 
number of any thing. 
     2. It is sometimes used in the common law for the true reckoning or 
account of time. Time is computed in two ways; first, naturally, counting 
years, days and hours; and secondly, civilly, that is, that when the last 
part of the time has once commenced, it is considered as accomplished. 
Savig. Dr. Rom. Sec. 182. See Infant; Fraction. For the computation of a 
year, see Com. Dig. Ann; of a mouth, Com. Dig. Temps. A; 1 John. Cas. 100 15 
John. R. 120; 2 Mass. 170, n.; 4 Mass. 460; 4 Dall. 144; 3 S. & R. 169; of a 
day, vide Day.; and 3, Burr 1434; 11 Mass. 204; 2 Browne, 18; Dig. 3, 4, 5; 
Salk. 625; 3 Wils. 274. 
     3. It is a general rule that when an act is to be done within a certain 
time, one day is to be taken inclusively, and one exclusively. Vide Lofft, 
276; Dougl. 463; 2 Chit. Pr. 69; 3 Id. 108, 9; 3 T. R. 623; 2 Campb. R. 294; 
4 Man. and Ryl. 300, n. (b) 5 Bingh. R. 339; S. C. 15, E. C. L. R. 462; 3 
East, R. 407; Hob. 139; 4 Moore, R. 465; Har. Dig. Time, computation of; 3 
T. R. 623; 5 T. R. 283; 2 Marsh. R. 41; 22 E. C. L. R. 270; 13, E, C. L. R. 
238; 24 E. C. L. R. 53; 4 Wasb. C. C. R. 232; 1 Ma-son, 176; 1 Pet. 60; 4 
Pet. 349; 9 Cranch, 104; 9 Wheat. 581. Vide Day; Hour; Month; Year.




 
 Encyclopedia Opens New Window.

Computation is a general term for any type of information processing. This includes phenomena ranging from human thinking to calculations with a more narrow meaning. Computation is a process following a well-defined model that is understood and can be expressed in an algorithm, protocol, network topology, etc. Computation is also a major subject matter of computer science: it investigates what can or cannot be done in a computational manner.

Search Wiktionary Look up computation in Wiktionary, the free dictionary.

Contents

[edit] Classes of computation

Computation can be classified by at least three orthogonal criteria: digital vs analog, sequential vs parallel vs concurrent, batch vs interactive.

In practice, digital computation is often used to simulate natural processes (for example, Evolutionary computation), including those that are more naturally described by analog models of computation (for example, Artificial neural network). In this situation, it is important to distinguish between the mechanism of computation and the simulated model.

[edit] Computations as a physical phenomenon

A computation can be seen as a purely physical phenomenon occurring inside a closed physical system called a computer. Examples of such physical systems include digital computers, quantum computers, DNA computers, molecular computers, analog computers or wetware computers. This point of view is the one adopted by the branch of theoretical physics called the physics of computation.

An even more radical point of view is the postulate of digital physics that the evolution of the universe itself is a computation - Pancomputationalism.

[edit] Mathematical models of computation

In the theory of computation, a diversity of mathematical models of computers have been developed. Typical mathematical models of computers are the following:

[edit] History

The word computation has an archaic meaning (from its Latin etymological roots), but the word has come back in use with the arising of a new scientific discipline: computer science.

[edit] See also

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