coupled ordinary differential equations numerical solution
NUMERICAL SOLUTIONS OF ORDINARY DIFFERENTIAL EQUATIONS
Ngày tải lên :
19/03/2015, 08:49
... Advanced Materials Newcastle University 20 30 Time 40 50 31 60 Numerical solution of ODEs: summary • • • • • All numerical ODE solution methods are based on the Taylor Series Euler’s Method is ... Following the previous steps, the solution is provided by: dx(t ) = f ( x, t ).dt • x(t ) = ∫ dx(t ) = ∫ f ( x, t ).dt Problem: Solution of x depends on x ! Numerical methods based on “rectangular” ... methods give more accurate solutions The size of the integration interval also influences the accuracy of the solutions (should be less than 10% of the time constant) • • st Solutions of sets of order...
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Báo cáo hóa học: "TERMINAL VALUE PROBLEM FOR SINGULAR ORDINARY DIFFERENTIAL EQUATIONS: THEORETICAL ANALYSIS AND NUMERICAL SIMULATIONS OF GROUND STATES" pdf
Ngày tải lên :
22/06/2014, 22:20
... BVP [13] W Walter, Ordinary Differential Equations, Graduate Texts in Mathematics, vol 182, Springer, New York, 1998 [14] W Wasov, Asymptotic Expressions for Ordinary Differential Equations, John ... consequently, ρ is a local solution of (2.6) Taking into account the classical theorem of the extendability of solutions, we impose one more condition on the desired solution lim p(r)ρ (r) = r ... now the solution of IVP (3.92)) ρ(r) < η, r ≥ 0, (3.93) by the continuity of solutions upon the nonlinearity, at the case when ξ → 1−, the boundary value problem (3.1) does not admit any solution...
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Numerical Methods for Ordinary Differential Equations Butcher Tableau doc
Ngày tải lên :
27/06/2014, 08:20
... Numerical Methods for Ordinary Differential Equations Numerical Methods for Ordinary Differential Equations, Second Edition J C Butcher © 2008 John Wiley & Sons, Ltd ISBN: 978-0-470-72335-7 Numerical ... which Numerical Methods for Ordinary Differential Equations, Second Edition J C Butcher © 2008 John Wiley & Sons, Ltd ISBN: 978-0-470-72335-7 NUMERICAL METHODS FOR ORDINARY DIFFERENTIAL EQUATIONS ... Charles), 193 3Numerical methods for ordinary differential equations/ J.C Butcher p.cm Includes bibliographical references and index ISBN 978-0-470-72335-7 (cloth) Differential equations Numerical solutions...
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Tài liệu Integration of Ordinary Differential Equations part 1 doc
Ngày tải lên :
15/12/2013, 04:15
... chapter treats the subject of stiff equations, relevant both to ordinary differential equations and also to partial differential equations (Chapter 19) Sample page from NUMERICAL RECIPES IN C: THE ART ... Chapter 16 Integration of Ordinary Differential Equations CITED REFERENCES AND FURTHER READING: Gear, C.W 1971, Numerical Initial Value Problems in Ordinary Differential Equations (Englewood Cliffs, ... Differential Equations (New York: Wiley) Lapidus, L., and Seinfeld, J 1971, Numerical Solution of Ordinary Differential Equations (New York: Academic Press) 16.1 Runge-Kutta Method The formula for...
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Tài liệu Integration of Ordinary Differential Equations part 2 pptx
Ngày tải lên :
15/12/2013, 04:15
... reprinted 1968 by Dover Publications, New York), §25.5 [1] Gear, C.W 1971, Numerical Initial Value Problems in Ordinary Differential Equations (Englewood Cliffs, NJ: Prentice-Hall), Chapter [2] Shampine, ... identical manner Prior behavior of a solution is not used in its propagation This is mathematically proper, since any point along the trajectory of an ordinary differential equation can serve as ... free_vector(yt,1,n); free_vector(dyt,1,n); free_vector(dym,1,n); 714 Chapter 16 Integration of Ordinary Differential Equations } CITED REFERENCES AND FURTHER READING: Abramowitz, M., and Stegun, I.A 1964,...
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Tài liệu Integration of Ordinary Differential Equations part 3 doc
Ngày tải lên :
24/12/2013, 12:16
... Integration of Ordinary Differential Equations } nrerror("Too many steps in routine odeint"); } CITED REFERENCES AND FURTHER READING: Gear, C.W 1971, Numerical Initial Value Problems in Ordinary Differential ... method is fourth order, the true solution and the two numerical approximations are related by 716 Chapter 16 Integration of Ordinary Differential Equations big step two small steps Figure 16.2.1 Step-doubling ... that, ignoring terms of order h6 and higher, we can solve the two equations in (16.2.1) to improve our numerical estimate of the true solution y(x + 2h), namely, y(x + 2h) = y2 + ∆ + O(h6 ) 15 (16.2.3)...
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Tài liệu Integration of Ordinary Differential Equations part 4 ppt
Ngày tải lên :
24/12/2013, 12:16
... 16 Integration of Ordinary Differential Equations } CITED REFERENCES AND FURTHER READING: Gear, C.W 1971, Numerical Initial Value Problems in Ordinary Differential Equations (Englewood Cliffs, ... high-accuracy solutions to ordinary differential equations with minimal computational effort (A possible exception, infrequently encountered in practice, is discussed in §16.7.) Sample page from NUMERICAL ... quick-and-dirty, low-accuracy solution of a set of equations A second warning is that the techniques in this section are not particularly good for differential equations that have singular points...
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Tài liệu Integration of Ordinary Differential Equations part 5 pdf
Ngày tải lên :
24/12/2013, 12:16
... q is then defined by 728 Chapter 16 Integration of Ordinary Differential Equations During the first step, when we have no information about the solution, the stepsize reduction check is made for ... q,f2,f1,delta,*c; 732 Chapter 16 Integration of Ordinary Differential Equations } CITED REFERENCES AND FURTHER READING: Stoer, J., and Bulirsch, R 1980, Introduction to Numerical Analysis (New York: Springer-Verlag), ... Analysis (New York: Springer-Verlag), §7.2.14 [1] Gear, C.W 1971, Numerical Initial Value Problems in Ordinary Differential Equations (Englewood Cliffs, NJ: Prentice-Hall), §6.2 Deuflhard, P 1983,...
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Tài liệu Integration of Ordinary Differential Equations part 6 pdf
Ngày tải lên :
24/12/2013, 12:16
... Chapter 16 Integration of Ordinary Differential Equations Note that for compatibility with bsstep the arrays y and d2y are of length 2n for a system of n second-order equations The values of y ... vol 27, pp 505–535 16.6 Stiff Sets of Equations As soon as one deals with more than one first-order differential equation, the possibility of a stiff set of equations arises Stiffness occurs in ... 16.5 Second-Order Conservative Equations 733 Here zm is y (x0 + H) Henrici showed how to rewrite equations (16.5.2) to reduce roundoff error by using the quantities...
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Tài liệu Integration of Ordinary Differential Equations part 7 pptx
Ngày tải lên :
24/12/2013, 12:16
... fact the correct solution of the differential equation If we think of x as representing time, then the implicit method converges to the true equilibrium solution (i.e., the solution at late times) ... Chapter 16 Integration of Ordinary Differential Equations Rosenbrock Methods s y(x0 + h) = y0 + c i ki (16.6.21) i=1 where the corrections ki are found by solving s linear equations that generalize ... automatically, see [6] CITED REFERENCES AND FURTHER READING: Gear, C.W 1971, Numerical Initial Value Problems in Ordinary Differential Equations (Englewood Cliffs, NJ: Prentice-Hall) [1] Kaps, P., and Rentrop,...
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Tài liệu Integration of Ordinary Differential Equations part 8 pdf
Ngày tải lên :
24/12/2013, 12:16
... 1971, Numerical Initial Value Problems in Ordinary Differential Equations (Englewood Cliffs, NJ: Prentice-Hall), Chapter [1] Shampine, L.F., and Gordon, M.K 1975, Computer Solution of Ordinary Differential ... trade@cup.cam.ac.uk (outside North America) be satisfied The second of the equations in (16.7.9) is 752 Chapter 16 Integration of Ordinary Differential Equations you suspect that your problem is suitable for this ... 16 Integration of Ordinary Differential Equations For multivalue methods the basic data available to the integrator are the first few terms of the Taylor series expansion of the solution at the...
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ordinary differential equations and dynamical systems - g. teschl
Ngày tải lên :
31/03/2014, 15:56
... §1.1 Newton’s equations §1.2 Classification of differential equations §1.3 First order autonomous equations §1.4 Finding explicit solutions 11 §1.5 Qualitative analysis of first order equations 16 ... InterpolatingFunction[{{−2., 1.03747}}, ][t]}} we can compute a numerical solution on the interval (−2, 2) Numerically solving an ordinary differential equations means computing a sequence of points (tj , ... super solution and x− (t) = −t is a sub solution for t ≥ This already has important consequences for the solutions: • For solutions starting in region I there are two cases; either the solution...
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an introduction to ordinary differential equations
Ngày tải lên :
12/05/2014, 03:24
... Part V Coupled linear equations 25 *Vector first order equations and higher order equations 25.1 Existence and uniqueness for second order equations Exercises 26 Explicit solutions of coupled ... systematic way 3.1 Ordinary and partial differential equations The most significant distinction is between ordinary and partial differential equations, and this depends on whether ordinary or partial ... constants, and series solutions Part IV turns aside from differential equations, motivating the study of difference equations by discussing Euler’s method of numerical solution Constant coefficient...
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Báo cáo hóa học: " Research Article A Generalized Wirtinger’s Inequality with Applications to a Class of Ordinary Differential Equations" docx
Ngày tải lên :
22/06/2014, 02:20
... that n and p 1, various problems on the solutions of 1.1 , such as the existence of periodic solutions, bifurcations of periodic solutions, and stability of solutions, have been studied by many ... differential equations, ” Transactions of the American Mathematical Society, vol 238, pp 139–164, 1978 J L Kaplan and J A Yorke, Ordinary differential equations which yield periodic solutions of ... of periodic solutions of one-dimensional differential-delay equations, ” Tohoku Mathematical Journal, vol 30, no 1, pp 13–35, 1978 S Chapin, “Periodic solutions of differential-delay equations with...
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Tài liệu Numerical Solution of Stochastic Differential Equations with Jumps in Finance pdf
Ngày tải lên :
19/02/2014, 22:20
... about the numerical solution of stochastic differential equations on the webpage of the first author under Numerical Methods”: http://www.business.uts.edu.au/ finance/staff/Eckhard /Numerical Methods.html ... require numerical recipes Together with Nicola Bruti-Liberati we had for several years planned a book to follow on the book with Peter Kloeden on the Numerical Solution of Stochastic Differential Equations , ... http://www.springer.com/series/602 Eckhard Platen r Nicola Bruti-Liberati Numerical Solution of Stochastic Differential Equations with Jumps in Finance Eckhard Platen Nicola Bruti-Liberati (1975–2007)...
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Báo cáo hóa học: " Positive solutions for a coupled system of nonlinear differential equations of mixed fractional orders" pot
Ngày tải lên :
21/06/2014, 03:20
... singular coupled system of nonlinear fractional differential equations Appl Math Comput 2004, 150:611-621 25 Su X: Boundary value problem for a coupled system of nonlinear fractional differential equations ... Positive solutions of a system of nonlinear fractional differential equations J Math Anal Appl 2005, 302:56-64 27 Wang J, Xiang H, Liu Z: Positive solution to nonzero boundary values problem for a coupled ... nonlinear fractional differential equations Int J Differ Equ 2010, 2010:1-12 28 Ahmad B, Nieto JJ: Existence results for a coupled system of nonlinear fractional differential equations with threepoint...
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Numerical Solution of Stochastic Differential Equations with Jumps in Finance docx
Ngày tải lên :
28/06/2014, 17:20
... about the numerical solution of stochastic differential equations on the webpage of the first author under Numerical Methods”: http://www.business.uts.edu.au/ finance/staff/Eckhard /Numerical Methods.html ... require numerical recipes Together with Nicola Bruti-Liberati we had for several years planned a book to follow on the book with Peter Kloeden on the Numerical Solution of Stochastic Differential Equations , ... http://www.springer.com/series/602 Eckhard Platen r Nicola Bruti-Liberati Numerical Solution of Stochastic Differential Equations with Jumps in Finance Eckhard Platen Nicola Bruti-Liberati (1975–2007)...
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The numerical solution of delay-differential equations P1
Ngày tải lên :
11/10/2014, 04:02
... with the numerical solution of delay -differential equations (DDE's) Delay -differential equations may best be regarded as extensions of ordinary differential equations (ODE's) in which the solution ... differential equations with time lags' or 'retarded ordinary differential equations' (RODES) A sensible generic term is 'ordinary differential equations with retarded arguments' NB 1 this term ... suitable methods for solving delay -differential equations, we briefly consider a few techniques suitable for ordinary differential equations In particular we consider the solution of initial value problem...
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The numerical solution of delay-differential equations P2
Ngày tải lên :
11/10/2014, 04:03
... could only arise from (i) derivative discontinuities at previous solution pOints or (ii) derivative discontinuities in other solution components Moreover we showed in equation (1.1.3:12) that ... lower bound on the minimum order of any derivative discontinuities inherited by ft from the past solution and is set to co if no where once again such discontinuities exist Combined with the definition ... bounds to {Ci : c i < From (3) however it is also clear that not all the components {yj : iSi} coupled to yi can have an equal effect upon c i A component yj can 293 affect yi only if its continuity...
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