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Topic: Arbitrary constant of integration


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In the News (Fri 17 Feb 12)

  
  Arbitrary constant of integration - Wikipedia, the free encyclopedia
If a function f is defined on an interval and F is an antiderivative of f, then the set of all antiderivatives of f is given by the functions F(x) + C, with C an arbitrary constant.
Consequently, the kernel of d/dx is the space of all constant functions.
Choosing a constant is the same as choosing an element of the coset.
en.wikipedia.org /wiki/Arbitrary_constant_of_integration   (968 words)

  
 Linearity of integration - Wikipedia, the free encyclopedia
In calculus, linearity is a fundamental property of the integral that follows from the sum rule in integration and the constant factor rule in integration.
We can by general theory (mean value theorem)identify the subspace C of V, consisting of all constant functions as the whole kernel of D.
That is, we treat the arbitrary constant of integration as a notation for a coset f + C; and all is well with the argument.
en.wikipedia.org /wiki/Linearity_of_integration   (230 words)

  
 Info Node: (calc.info)Integration   (Site not responding. Last check: 2007-10-21)
Integration ----------- The `a i' (`calc-integral') [`integ'] command computes the indefinite integral of the expression on the top of the stack with respect to a variable.
The integrator is not guaranteed to work for all integrable functions, but it is able to integrate several large classes of formulas.
Also, any indefinite integral should be considered to have an arbitrary constant of integration added to it, although Calc does not write an explicit constant of integration in its result.
www.cs.vassar.edu /cgi-bin/info2www?(calc.info)Integration   (518 words)

  
 Learn more about Integration by parts in the online encyclopedia.   (Site not responding. Last check: 2007-10-21)
In mathematics, integration by parts is a general rule that transforms the integral of calculus of products of functions into other integrals.
where C is an arbitrary constant of integration.
Integration by parts follows from the product rule of differentiation: If the two continuously differentiable functions u(x) and v(x) are given, the product rule states that
www.onlineencyclopedia.org /i/in/integration_by_parts.html   (623 words)

  
 Search Results for Integration
This rather arbitrary constant of integration which Einstein introduced admitting it was not justified by our actual knowledge of gravitation was later said by him to be the greatest blunder of my life.
Integration to Bernoulli was simply viewed as the inverse operation to differentiation and with this approach he had great success in integrating differential equations.
The integration of those two fields was one of the great achievements of Richard Dedekind and Georg Cantor, the latter of whom we [St Andrews University] were intelligent enough to honour in 1911.
www-groups.dcs.st-and.ac.uk /history/Search/historysearch.cgi?SUGGESTION=Integration&CONTEXT=1   (3888 words)

  
 Arbitrary constant of integration : Simplest integral   (Site not responding. Last check: 2007-10-21)
In indefinite integrals, the constant of integration is always an additive one.
When solving certain ordinary differential equations, for instance with the method of separation of variables[?], one has to keep track of the integration constants because they determine the set of solutions to the differential equation, and not all of them remain additive.
In the language of abstract algebra, the presence of C shows that indefinite integrals are actually cosets, with respect to the kernel of the differentiation map that is being inverted.
www.city-search.org /si/simplest-integral.html   (602 words)

  
 The Mathematica Book Online: Advanced Mathematics in Mathematica | Calculus
You can get other expressions by adding an arbitrary constant of integration, or indeed by adding any function that is constant except at discrete points.
But even though the indefinite integral can have arbitrary constants added, it is still often very convenient to manipulate it without filling in the limits.
The Integrate function assumes that any object that does not explicitly contain the integration variable is independent of it, and can be treated as a constant.
documents.wolfram.com /mathematica/book/section-3.5.6   (438 words)

  
 Fundamental Property of Antiderivatives   (Site not responding. Last check: 2007-10-21)
According to Corollary 2 of the Mean Value Theorem, once we have found one antiderivative F of a function, the other antiderivatives of f differ from F by a constant.
The constant C is the constant of integration or arbitrary constant.
This equation is read, "The indefinite integral of f with respect to x is F(x) + C." When we find F(x) + C, we say that we have integrated f and evaluated the integral.
www2.volstate.edu /mat261/41Lsn25/tsld005.htm   (85 words)

  
 INTEGRATION BY PARTS FACTS AND INFORMATION   (Site not responding. Last check: 2007-10-21)
In calculus, and more generally in mathematical_analysis, integration by parts is a rule that transforms the integral of products of functions into other, possibly simpler, integrals.
Two other well-known examples are when integration by parts is applied to a function expressed as a product of 1 and itself.
The formula for integration by parts can be extened to functions of several variables.
www.witwik.com /Integration_by_parts   (880 words)

  
 Introduction
The values of the arbitrary constants that we almost invariably acquire when solving a differential equation are usually determined by giving conditions that the solution is required to satisfy.
Note that an equation of order n generally requires n integrations to get the general solution, so the general solution can be expected to contain n unknown constants and you would expect to have to give n conditions to fix these constants.
In the simple case of a particle moving in a straight line the general solution should contain two constants of integration.
www.maths.abdn.ac.uk /~igc/tch/ma1002/int/node43.html   (653 words)

  
 Integrating Factors   (Site not responding. Last check: 2007-10-21)
where K is an arbitrary constant of integration.
appears in both of these terms, so it cancels out of the first distributed term in (2), and can be absorbed into the arbitrary constant K in the second term.
Integrating these coefficients, we find that the they are the partials of the function
www.mathpages.com /home/kmath220/kmath220.htm   (853 words)

  
 BBC Education - AS Guru - Maths - Methods - Integration - Area under Graphs
We have seen that as the number of divisions into which the range was divided increased, the estimate of the total area came increasingly close to a limiting value.
When you are asked to integrate a polynomial, you are in fact establishing a means of determining the area under the curve that the function generates.
When evaluating definite integrals the constant of integration is not needed.
www.bbc.co.uk /education/asguru/maths/12methods/04integration/20areaundergraphs/principles.shtml   (208 words)

  
 Math 331.1 - lectures
The mathematical model of population of mice in the presence of owls, assuming the growth of the population in the absence of predators is proportional to the current population, was found to be desribed by the differential equation dp/dt=rp-k.
The proof of the theorem is contained in the lecture given on February 03, if we notice that the continuity of p guarantees the existence and differentiability of the integrating factor μ, which along with the continuity of g guarantees the properness of all the integrations, hence proving the existence of the solution.
For this reason the constant K entering the differential equation is called the saturation level or the caring capaciy of the environment.
www.math.umass.edu /~grigoryan/331/lectures.html   (6775 words)

  
 Potential Energy
Note that there is an arbitrary constant of integration in that definition, showing that any constant can be added to the potential energy.
The force on an object is the negative of the derivative of the potential function U. This means it is the negative of the slope of the potential energy curve.
A conservative force may be defined as one for which the work done in moving between two points A and B is independent of the path taken between the two points.
hyperphysics.phy-astr.gsu.edu /hbase/pegrav.html   (544 words)

  
 Matrix formulation.   (Site not responding. Last check: 2007-10-21)
Let there be N square sided cells of arbitrary area.
Let each cell have an arbitrary time dependent inflow/outflow and a linear level dependent estuary mouth.
This is how the system varies continuously from the arbitrary initial condition to the long term response to the input given in the second summation.
www-dwaf.pwv.gov.za /iwqs/stlucia/node25.html   (164 words)

  
 On the unnormalisable probability distributions
The simplest case is the problem of the free particle, that supports stationary states with probability density constant everywhere.
At this level, the probability density of an unnormalisable distribution may be multiplied by an arbitrary constant, and its integration supply not the probability of an interval, but the ratio between the probabilities of different intervals.
For example, a probability density constant for every x ≥ 0 is not the limit, for L → ∞, of a probability density constant for 0 ≤ x < L, because, in the limit, all the X
pfabbri.interfree.it /distributions.html   (519 words)

  
 separable differential equations examples
Note that we add the arbitrary constant to the integration on the right.
This equation is derived using basic physics with the assumption that the sum of the kinetic and potential energy of the system remains constant.
is a constant for a cylinder, we have that
www-rohan.sdsu.edu /~jmahaffy/courses/f00/math122/lectures/sep_diffequations/sepdeeg.htm   (1064 words)

  
 PlanetMath: antiderivative
Note that there are an infinite number of antiderivatives for any function
, since any constant can be added or subtracted from any valid antiderivative to yield another equally valid antiderivative.
is an arbitrary constant called the constant of integration.
planetmath.org /encyclopedia/GeneralAntiderivative.html   (82 words)

  
 [No title]
(Since an \ arbitrary differentiable function can be approximated by its polynomial \ Taylor's Series, it is easy to test this just by introducing a cubic or \ quartic term in the utility function.) \nFurthermore, certainty equivalence \ does not work for a multiplicative shock to productivity of capital.
As we have seen in the example in the last section, this is convenient \ to express target levels of consumption, and in the current very general \ formulation, to allow for changes over time in the target levels of \ consumption, which we called ", Cell[BoxData[ \(TraditionalForm\`c\&_\)]], ".
For example, arbitrary time patterns of \ production and depreciation can in principle be incorporated into this type \ of model by expanding the state space to include machines of different ages.
homepage.newschool.edu /~foleyd/GECO6289/linquadreg.nb   (1519 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
Let I(x, y) be an integrating factor, such that {(the ODE) (I(x, y)} is exact:  EMBED Equation.DSMT4  My = 2I + 2y Iy Nx = I + x Ix We need a simplifying assumption (in order to avoid dealing with partial differential equations).
If so, then the integrating factor is EMBED Equation.DSMT4 [Note that the arbitrary constant of integration can be omitted safely.] Then EMBED Equation.DSMT4 If we assume that the integrating factor is a function of y alone, then EMBED Equation.DSMT4 EMBED Equation.DSMT4 This assumption is valid only if EMBED Equation.DSMT4 a function of y only.
If so, the integrating factor is  EMBED Equation.DSMT4  Then solve the exact ODE I P dx + I Q dy = 0.
www.engr.mun.ca /~ggeorge/2422/thebook/B03ode1.doc   (2117 words)

  
 Integration   (Site not responding. Last check: 2007-10-21)
This command takes two arguments, the first of which is the expression for the function to be integrated.
The second argument specifies the variable of integration and, if a definite integral is required, it also specifies the limits.
Note that in the indefinite integral, Maple does not include an arbitrary constant of integration.
www.ma.rmit.edu.au /kepler/maple_worksheets/node12.html   (73 words)

  
 UW Swansea PGCE Maths - Black Pages
so that ln y = 4 ln cx where c is an arbitrary constant of integration.
Obviously questions gets much more difficult than this example, but if the same steps are taken and after a little perseverance, the solutions will be obtained.
The main error which occurs in differential equations is leaving out the constant of integration, or putting it in the wrong place (see general integration solutions either in previous section on integration or the books mentioned above).
www.swan.ac.uk /education/pgcemaths/mk/tests/alev_11-16_solutions.html   (1118 words)

  
 INT   (Site not responding. Last check: 2007-10-21)
The arbitrary constant of integration is not shown.
Definite integrals can be found by evaluating the result at the limits of integration (use [see ROUNDED.]) and subtracting the lower from the higher.
If not all of the expression can be integrated, the switch [*note NOLNR::.] controls whether a partially integrated result should be returned or not.
www.fi.uib.no /~ladi/reduce/Reduce/int.html   (169 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
This is then integrated with the boundary conditions relevant to the problem to obtain the velocity profile.
The result of this integration is  EMBED Equation.DSMT4  where  EMBED Equation.DSMT4  is an arbitrary constant of integration that needs to be determined.
The arbitrary constants, which must be introduced when the integrations are performed, can be evaluated by the application of boundary conditions based on physical principles.
www.clarkson.edu /subramanian/ch301/notes/shell.doc   (2741 words)

  
 MATH 2411 #7: INTEGRATION BY PARTS
Usually the constant of integration, C, is not written.
The trick to integration by parts is figuring out which part of the integrand to make u and which part to make dv.
This means that if they are part of an integrand, you can sometimes repeat the original integral (with a different coefficient and no other unknown integrals) using integrations by parts and therefore solve for it algebraically.
www-math.cudenver.edu /~rbyrne/online/241w7.htm   (358 words)

  
 The argument in outline   (Site not responding. Last check: 2007-10-21)
Time itself is an integrated function of inverse
with an arbitrary constant of integration, and it is not necessarily single valued.
There is an absolute constant of gravitation G that operates in the 4-dimensional host space of S
www.at-royston.freeserve.co.uk /Argument.html   (495 words)

  
 Math Forum - Ask Dr. Math
Date: 02/17/99 at 17:46:41 From: jenny Subject: Techniques of integration Hello.
Date: 02/18/99 at 00:53:14 From: Doctor Luis Subject: Re: Techniques of integration You can approach this question more easily if you use the identity sin(2x) = 2sin(x)cos(x), and if you rewrite your integral in a more suggestive way, like this: /
Obviously, I have neglected the arbitrary constant of integration, but you can add that at any time.
mathforum.org /dr.math/problems/jenny02.17.99.html   (299 words)

  
 Sitter   (Site not responding. Last check: 2007-10-21)
In fact Einstein had introduced the cosmological constant in 1917 to solve the problem of the universe which had troubled Newton before him, namely why does the universe not collapse under gravitational attraction.
detracts from the symmetry and elegance of Einstein's original theory, one of whose chief attractions was that it explained so much without introducing any new hypothesis or empirical constant.
In 1932 Einstein and de Sitter published a joint paper with Einstein in which they proposed the Einstein-de Sitter model of the universe.
www-history.mcs.st-and.ac.uk /history/Mathematicians/Sitter.html   (503 words)

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