Nutraceutical
发表于 2025-3-21 19:32:45
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FLAGR
发表于 2025-3-21 23:46:29
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清醒
发表于 2025-3-22 01:12:33
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Ejaculate
发表于 2025-3-22 07:45:33
The solution of equations,There are only a few types of equations which can be solved by simple, direct methods in a finite (and predictable) number of operations. These include the linear equation . and the quadratic equation . for which the solutions are, of course, well known.
忘川河
发表于 2025-3-22 11:07:08
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amygdala
发表于 2025-3-22 16:39:02
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Anhydrous
发表于 2025-3-22 18:10:47
Integral methods for the solution of boundary value problems,In this book we have, so far, concentrated heavily on finite difference methods for the solution of boundary value problems. These methods were discussed in Sections 5.12 and 5.13 for ordinary differential equations and in Chapter 6 for elliptic partial differential equations.
讨好美人
发表于 2025-3-23 00:03:31
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对手
发表于 2025-3-23 02:02:32
Ordinary differential equations, or higher-order equations, which can be written . have solutions which may be written . The problem is to determine, from (5.1) or (5.2) and the necessary boundary conditions, the relationaship (5.3) between . and ..
我要威胁
发表于 2025-3-23 07:56:46
,Partial differential equations II — parabolic equations,d of time ., and in which the coefficient . is a constant. Strictly, this is a two-dimensional equation: . is a function of two co-ordinates. However, in the form, for example, of (7.2) below, this is usually called the ‘one-dimensional heat conduction equation’ because it describes the unsteady conduction of heat in one . dimension.